diff --git a/01 - JavaScript Drum Kit/index-FINISHED.html b/01 - JavaScript Drum Kit/index-FINISHED.html
index 1a16d0997c..995a80d977 100644
--- a/01 - JavaScript Drum Kit/index-FINISHED.html	
+++ b/01 - JavaScript Drum Kit/index-FINISHED.html	
@@ -58,23 +58,24 @@
   <audio data-key="76" src="sounds/tink.wav"></audio>
 
 <script>
-  function removeTransition(e) {
-    if (e.propertyName !== 'transform') return;
-    e.target.classList.remove('playing');
-  }
-
   function playSound(e) {
     const audio = document.querySelector(`audio[data-key="${e.keyCode}"]`);
-    const key = document.querySelector(`div[data-key="${e.keyCode}"]`);
-    if (!audio) return;
+    if (!audio) return; // stop function from running all together
+    audio.currentTime = 0; // rewind to the start
+    audio.play();
 
+    const key = document.querySelector(`.key[data-key="${e.keyCode}"]`);
     key.classList.add('playing');
-    audio.currentTime = 0;
-    audio.play();
   }
 
-  const keys = Array.from(document.querySelectorAll('.key'));
+  function removeTransition(e) {
+    if (e.propertyName !== 'transform') return;
+    e.target.classList.remove('playing');
+  }
+
+  const keys = document.querySelectorAll('.key');
   keys.forEach(key => key.addEventListener('transitionend', removeTransition));
+
   window.addEventListener('keydown', playSound);
 </script>
 
diff --git a/02 - JS and CSS Clock/index-FINISHED.html b/02 - JS and CSS Clock/index-FINISHED.html
index 7449fc52f5..57a4d47ef7 100644
--- a/02 - JS and CSS Clock/index-FINISHED.html	
+++ b/02 - JS and CSS Clock/index-FINISHED.html	
@@ -65,35 +65,34 @@
       transform-origin: 100%;
       transform: rotate(90deg);
       transition: all 0.05s;
-      transition-timing-function: cubic-bezier(0.1, 2.7, 0.58, 1);
+      transition-timing-function: cubic-bezier(0, 2.43, 0, 1.65);
     }
-</style>
 
-<script>
-  const secondHand = document.querySelector('.second-hand');
-  const minsHand = document.querySelector('.min-hand');
-  const hourHand = document.querySelector('.hour-hand');
+  </style>
 
-  function setDate() {
-    const now = new Date();
+  <script>
+    const secondHand = document.querySelector('.second-hand');
+    const minHand = document.querySelector('.min-hand');
+    const hourHand = document.querySelector('.hour-hand');
 
-    const seconds = now.getSeconds();
-    const secondsDegrees = ((seconds / 60) * 360) + 90;
-    secondHand.style.transform = `rotate(${secondsDegrees}deg)`;
+    function setDate() {
+      const now = new Date();
 
-    const mins = now.getMinutes();
-    const minsDegrees = ((mins / 60) * 360) + ((seconds/60)*6) + 90;
-    minsHand.style.transform = `rotate(${minsDegrees}deg)`;
+      const seconds = now.getSeconds();
+      const secondsDegrees = ((seconds / 60) * 360) + 90;
+      secondHand.style.transform = `rotate(${secondsDegrees}deg)`;
 
-    const hour = now.getHours();
-    const hourDegrees = ((hour / 12) * 360) + ((mins/60)*30) + 90;
-    hourHand.style.transform = `rotate(${hourDegrees}deg)`;
-  }
+      const mins = now.getMinutes();
+      const minsDegrees = ((mins / 60) * 360) + 90;
+      minHand.style.transform = `rotate(${minsDegrees}deg)`;
 
-  setInterval(setDate, 1000);
+      const hours = now.getHours();
+      const hoursDegrees = ((hours / 12) * 360) + 90;
+      hourHand.style.transform = `rotate(${hoursDegrees}deg)`;
+    }
 
-  setDate();
+    setInterval(setDate, 1000);
 
-</script>
+  </script>
 </body>
 </html>
diff --git a/03 - CSS Variables/index-FINISHED.html b/03 - CSS Variables/index-FINISHED.html
index 2f0d1464ff..ee9f771ca9 100644
--- a/03 - CSS Variables/index-FINISHED.html	
+++ b/03 - CSS Variables/index-FINISHED.html	
@@ -18,7 +18,7 @@ <h2>Update CSS Variables with <span class='hl'>JS</span></h2>
     <input id="base" type="color" name="base" value="#ffc600">
   </div>
 
-  <img src="https://source.unsplash.com/7bwQXzbF6KE/800x500">
+  <img src="./logo-512.png">
 
   <style>
     :root {
@@ -62,15 +62,20 @@ <h2>Update CSS Variables with <span class='hl'>JS</span></h2>
   <script>
     const inputs = document.querySelectorAll('.controls input');
 
-    function handleUpdate() {
-      const suffix = this.dataset.sizing || '';
-      document.documentElement.style.setProperty(`--${this.name}`, this.value + suffix);
+    function isDragMouseEvent(e) {
+      return (e.type === 'mousemove') && (e.buttons != 0);
+    }
+
+    function handleUpdate(e) {
+      if (e.type !== 'change' && !isDragMouseEvent(e)) return;
+
+      const suffix = e.target.dataset.sizing || '';
+      document.documentElement.style.setProperty(`--${e.target.name}`, e.target.value + suffix);
     }
 
     inputs.forEach(input => input.addEventListener('change', handleUpdate));
     inputs.forEach(input => input.addEventListener('mousemove', handleUpdate));
   </script>
 
-
 </body>
 </html>
diff --git a/03 - CSS Variables/logo-512.png b/03 - CSS Variables/logo-512.png
new file mode 100644
index 0000000000..3792d17156
Binary files /dev/null and b/03 - CSS Variables/logo-512.png differ
diff --git a/04 - Array Cardio Day 1/index-FINISHED.html b/04 - Array Cardio Day 1/index-FINISHED.html
index ede883f1f9..c2e02e021c 100644
--- a/04 - Array Cardio Day 1/index-FINISHED.html	
+++ b/04 - Array Cardio Day 1/index-FINISHED.html	
@@ -27,79 +27,60 @@
       { first: 'Hanna', last: 'Hammarström', year: 1829, passed: 1909 }
     ];
 
-    const people = ['Beck, Glenn', 'Becker, Carl', 'Beckett, Samuel', 'Beddoes, Mick', 'Beecher, Henry', 'Beethoven, Ludwig', 'Begin, Menachem', 'Belloc, Hilaire', 'Bellow, Saul', 'Benchley, Robert', 'Benenson, Peter', 'Ben-Gurion, David', 'Benjamin, Walter', 'Benn, Tony', 'Bennington, Chester', 'Benson, Leana', 'Bent, Silas', 'Bentsen, Lloyd', 'Berger, Ric', 'Bergman, Ingmar', 'Berio, Luciano', 'Berle, Milton', 'Berlin, Irving', 'Berne, Eric', 'Bernhard, Sandra', 'Berra, Yogi', 'Berry, Halle', 'Berry, Wendell', 'Bethea, Erin', 'Bevan, Aneurin', 'Bevel, Ken', 'Biden, Joseph', 'Bierce, Ambrose', 'Biko, Steve', 'Billings, Josh', 'Biondo, Frank', 'Birrell, Augustine', 'Black Elk', 'Blair, Robert', 'Blair, Tony', 'Blake, William'];
+    const people = ['Beck, Glenn', 'Becker, Carl', 'Beckett, Samuel', 'Beddoes, Mick', 'Beecher, Henry', 'Beethoven, Ludwig', 'Begin, Menachem', 'Belloc, Hilaire', 'Bellow, Saul', 'Benchley, Robert', 'Benenson, Peter', 'Ben-Gurion, David', 'Benjamin, Walter', 'Benn, Tony', 'Bennington, Chester', 'Benson, Leana', 'Bent, Silas', 'Bentsen, Lloyd', 'Berger, Ric', 'Bergman, Ingmar', 'Berio, Luciano', 'Berle, Milton', 'Berlin, Irving', 'Berne, Eric', 'Bernhard, Sandra', 'Berra, Yogi', 'Berry, Halle', 'Berry, Wendell', 'Bethea, Erin', 'Bevan, Aneurin', 'Bevel, Ken', 'Biden, Joseph', 'Bierce, Ambrose', 'Biko, Steve', 'Billings, Josh', 'Biondo, Frank', 'Birrell, Augustine', 'Black, Elk', 'Blair, Robert', 'Blair, Tony', 'Blake, William'];
 
     // Array.prototype.filter()
     // 1. Filter the list of inventors for those who were born in the 1500's
-    const fifteen = inventors.filter(inventor => (inventor.year >= 1500 && inventor.year < 1600));
-
-    console.table(fifteen);
+    const bornInventors = inventors.filter(inventor => inventor.year >= 1500 && inventor.year < 1600);
+    console.table(bornInventors);
 
     // Array.prototype.map()
-    // 2. Give us an array of the inventor first and last names
-    const fullNames = inventors.map(inventor => `${inventor.first} ${inventor.last}`);
-    console.log(fullNames);
+    // 2. Give us an array of the inventors' first and last names
+    const firstLastNameInventors = inventors.map(inventor => { return {first: inventor.first, last: inventor.last}; });
+    console.table(firstLastNameInventors);
 
     // Array.prototype.sort()
     // 3. Sort the inventors by birthdate, oldest to youngest
-    // const ordered = inventors.sort(function(a, b) {
-    //   if(a.year > b.year) {
-    //     return 1;
-    //   } else {
-    //     return -1;
-    //   }
-    // });
-
-    const ordered = inventors.sort((a, b) => a.year > b.year ? 1 : -1);
-    console.table(ordered);
+    const inventorsByBirthdateDesc = inventors.sort((i1, i2) => i2.year - i1.year);
+    console.table(inventorsByBirthdateDesc);
 
     // Array.prototype.reduce()
     // 4. How many years did all the inventors live?
-    const totalYears = inventors.reduce((total, inventor) => {
-      return total + (inventor.passed - inventor.year);
-    }, 0);
-
-    console.log(totalYears);
+    // const totalLifespan = inventors.map(i => i.passed - i.year).reduce((total, i2) => total + i2);
+    const totalLifespan = inventors.reduce((total, inventor) => total + (inventor.passed - inventor.year), 0);
+    console.log(totalLifespan);
 
     // 5. Sort the inventors by years lived
-    const oldest = inventors.sort(function(a, b) {
-      const lastInventor = a.passed - a.year;
-      const nextInventor = b.passed - b.year;
-      return lastInventor > nextInventor ? -1 : 1;
-    });
-    console.table(oldest);
+    const inventorsByYearsLived = inventors.sort((i1, i2) => (i1.passed - i1.year) - (i2.passed - i2.year));
+    console.table(inventorsByYearsLived);
 
     // 6. create a list of Boulevards in Paris that contain 'de' anywhere in the name
     // https://en.wikipedia.org/wiki/Category:Boulevards_in_Paris
-
-    // const category = document.querySelector('.mw-category');
-    // const links = Array.from(category.querySelectorAll('a'));
-    // const de = links
-    //             .map(link => link.textContent)
-    //             .filter(streetName => streetName.includes('de'));
+    var xhr = new XMLHttpRequest();
+    xhr.onload = function() {
+      const links = Array.from(xhr.responseXML.querySelectorAll('.mw-category-group a'));
+      const titles = links.map(a => a.getAttribute('title'));
+      const deBoulevards = titles.filter(t => t.toLowerCase().includes(' de '));
+      console.table(deBoulevards);
+    }
+    xhr.open("GET", "https://cors.io/?https://en.wikipedia.org/wiki/Category:Boulevards_in_Paris");
+    xhr.responseType = "document";
+    xhr.send();
 
     // 7. sort Exercise
     // Sort the people alphabetically by last name
-    const alpha = people.sort((lastOne, nextOne) => {
-      const [aLast, aFirst] = lastOne.split(', ');
-      const [bLast, bFirst] = nextOne.split(', ');
-      return aLast > bLast ? 1 : -1;
+    const peopleByLastName = people.sort((a, b) => {
+      const [aLast, aFirst] = a.split(', ');
+      const [bLast, bFirst] = b.split(', ');
+      return aLast > bLast ? 1 : (aLast < bLast ? -1 : 0);
     });
-    console.log(alpha);
+    console.table(peopleByLastName);
 
     // 8. Reduce Exercise
     // Sum up the instances of each of these
-    const data = ['car', 'car', 'truck', 'truck', 'bike', 'walk', 'car', 'van', 'bike', 'walk', 'car', 'van', 'car', 'truck', 'pogostick'];
-
-    const transportation = data.reduce(function(obj, item) {
-      if (!obj[item]) {
-        obj[item] = 0;
-      }
-      obj[item]++;
-      return obj;
-    }, {});
-
-    console.log(transportation);
+    const data = ['car', 'car', 'truck', 'truck', 'bike', 'walk', 'car', 'van', 'bike', 'walk', 'car', 'van', 'car', 'truck' ];
+    const instanceCount = data.map(d => { return {name: d, count: 1}; }).reduce((dict, d) => { dict[d.name] = (dict[d.name] || 0) + d.count; return dict; });
+    console.table(instanceCount);
 
   </script>
 </body>
diff --git a/05 - Flex Panel Gallery/index-FINISHED.html b/05 - Flex Panel Gallery/index-FINISHED.html
index bfa64d6be3..dd786edd38 100644
--- a/05 - Flex Panel Gallery/index-FINISHED.html	
+++ b/05 - Flex Panel Gallery/index-FINISHED.html	
@@ -45,9 +45,10 @@
       background-size: cover;
       background-position: center;
       flex: 1;
-      justify-content: center;
       display: flex;
       flex-direction: column;
+      justify-content: center;
+      align-items: center;
     }
 
     .panel1 { background-image:url(https://source.unsplash.com/gYl-UtwNg_I/1500x1500); }
@@ -56,11 +57,12 @@
     .panel4 { background-image:url(https://source.unsplash.com/ITjiVXcwVng/1500x1500); }
     .panel5 { background-image:url(https://source.unsplash.com/3MNzGlQM7qs/1500x1500); }
 
-    /* Flex Items */
+    /* Flex Children */
     .panel > * {
       margin: 0;
       width: 100%;
       transition: transform 0.5s;
+      border: 1px solid red;
       flex: 1 0 auto;
       display: flex;
       justify-content: center;
@@ -68,9 +70,9 @@
     }
 
     .panel > *:first-child { transform: translateY(-100%); }
-    .panel.open-active > *:first-child { transform: translateY(0); }
+    .panel.open-active > *:first-child { transform: translateY(0%); }
     .panel > *:last-child { transform: translateY(100%); }
-    .panel.open-active > *:last-child { transform: translateY(0); }
+    .panel.open-active > *:last-child { transform: translateY(0%); }
 
     .panel p {
       text-transform: uppercase;
@@ -84,15 +86,10 @@
     }
 
     .panel.open {
-      flex: 5;
       font-size: 40px;
+      flex: 5;
     }
-    
-    @media only screen and (max-width: 600px) {
-      .panel p {
-        font-size: 1em;
-      }
-    }
+
   </style>
 
 
@@ -127,20 +124,19 @@
   <script>
     const panels = document.querySelectorAll('.panel');
 
-    function toggleOpen() {
-      console.log('Hello');
+    function toggleOpen(e) {
       this.classList.toggle('open');
     }
 
     function toggleActive(e) {
-      console.log(e.propertyName);
       if (e.propertyName.includes('flex')) {
         this.classList.toggle('open-active');
       }
     }
 
-    panels.forEach(panel => panel.addEventListener('click', toggleOpen));
-    panels.forEach(panel => panel.addEventListener('transitionend', toggleActive));
+    panels.forEach(p => p.addEventListener('click', toggleOpen));
+    panels.forEach(p => p.addEventListener('transitionend', toggleActive));
+
   </script>
 
 </body>
diff --git a/06 - Type Ahead/index-FINISHED.html b/06 - Type Ahead/index-FINISHED.html
index 5902b43936..53a3c6ca75 100644
--- a/06 - Type Ahead/index-FINISHED.html	
+++ b/06 - Type Ahead/index-FINISHED.html	
@@ -10,52 +10,65 @@
   <form class="search-form">
     <input type="text" class="search" placeholder="City or State">
     <ul class="suggestions">
-      <li>Filter for a city</li>
-      <li>or a state</li>
+      <li>Loading data, please wait...</li>
     </ul>
   </form>
 <script>
-const endpoint = 'https://gist.githubusercontent.com/Miserlou/c5cd8364bf9b2420bb29/raw/2bf258763cdddd704f8ffd3ea9a3e81d25e2c6f6/cities.json';
+  const searchInput = document.querySelector('.search');
+  const suggestions = document.querySelector('.suggestions');
 
-const cities = [];
-fetch(endpoint)
-  .then(blob => blob.json())
-  .then(data => cities.push(...data));
+  const endpoint = 'https://gist.githubusercontent.com/Miserlou/c5cd8364bf9b2420bb29/raw/2bf258763cdddd704f8ffd3ea9a3e81d25e2c6f6/cities.json';
+  const cities = [];
 
-function findMatches(wordToMatch, cities) {
-  return cities.filter(place => {
-    // here we need to figure out if the city or state matches what was searched
-    const regex = new RegExp(wordToMatch, 'gi');
-    return place.city.match(regex) || place.state.match(regex)
-  });
-}
+  searchInput.disabled = true;
 
-function numberWithCommas(x) {
-  return x.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ',');
-}
+  fetch(endpoint)
+    .then(blob => blob.json())
+    .then(data => {
+      cities.push(...data);
+      searchInput.disabled = false;
+      suggestions.innerHTML = `<li>Filter for a city</li>
+                               <li>or a state</li>`;
+    })
+    .catch(e => {
+      const errorMessage = `<li>Error loading data from ${endpoint}:\n${e}</li>`;
+      suggestions.innerHTML = errorMessage;
+    });
+    
+  
+  function findMatches(regex, cities) {
+    return cities.filter(place => place.city.match(regex) || place.state.match(regex));
+  }
 
-function displayMatches() {
-  const matchArray = findMatches(this.value, cities);
-  const html = matchArray.map(place => {
-    const regex = new RegExp(this.value, 'gi');
-    const cityName = place.city.replace(regex, `<span class="hl">${this.value}</span>`);
-    const stateName = place.state.replace(regex, `<span class="hl">${this.value}</span>`);
-    return `
-      <li>
-        <span class="name">${cityName}, ${stateName}</span>
-        <span class="population">${numberWithCommas(place.population)}</span>
-      </li>
-    `;
-  }).join('');
-  suggestions.innerHTML = html;
-}
+  function numberWithCommas(x) {
+    return x.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ',');
+  }
 
-const searchInput = document.querySelector('.search');
-const suggestions = document.querySelector('.suggestions');
-
-searchInput.addEventListener('change', displayMatches);
-searchInput.addEventListener('keyup', displayMatches);
+  function searchAndDisplayMatches(e) {
+    const searchTerm = e.target.value.trim();
+    let html = '';
+    if (searchTerm) {
+      const regex = new RegExp(searchTerm, 'gi');
+      const matches = findMatches(regex, cities);
+      html = matches
+        .sort((p1, p2) => p2.population - p1.population)
+        .map(place => {
+          const cityName = place.city.replace(regex, `<span class="hl">${searchTerm}</span>`);
+          const stateName = place.state.replace(regex, `<span class="hl">${searchTerm}</span>`);
+          return `
+            <li>
+              <span class="name">${cityName}, ${stateName}</span>
+              <span class="population">${numberWithCommas(place.population)}</span>
+            </li>
+          `;
+        })
+        .join('\n');
+    }
+    suggestions.innerHTML = html;
+  }
+  
+  searchInput.addEventListener('keyup', searchAndDisplayMatches);
 
 </script>
-  </body>
+</body>
 </html>
diff --git a/07 - Array Cardio Day 2/index-FINISHED.html b/07 - Array Cardio Day 2/index-FINISHED.html
index 24efbf91b0..36fd28a745 100644
--- a/07 - Array Cardio Day 2/index-FINISHED.html	
+++ b/07 - Array Cardio Day 2/index-FINISHED.html	
@@ -25,36 +25,24 @@
     ];
 
     // Some and Every Checks
-    // Array.prototype.some() // is at least one person 19?
-    // const isAdult = people.some(function(person) {
-    //   const currentYear = (new Date()).getFullYear();
-    //   if(currentYear - person.year >= 19) {
-    //     return true;
-    //   }
-    // });
-
-    const isAdult = people.some(person => ((new Date()).getFullYear()) - person.year >= 19);
-
+    // Array.prototype.some() // is at least one person 19 or older?
+    const isAdult = people.some(person => ((new Date().getFullYear - person.year) >= 19));
     console.log({isAdult});
-    // Array.prototype.every() // is everyone 19?
 
-    const allAdults = people.every(person => ((new Date()).getFullYear()) - person.year >= 19);
+    // Array.prototype.every() // is everyone 19 or older?
+    const allAdults = people.every(person => ((new Date().getFullYear - person.year) >= 19));
     console.log({allAdults});
 
     // Array.prototype.find()
     // Find is like filter, but instead returns just the one you are looking for
     // find the comment with the ID of 823423
-
-
-    const comment = comments.find(comment => comment.id === 823423);
-
-    console.log(comment);
+    const comment = comments.find(e => e.id === 823423);
+    console.log({comment});
 
     // Array.prototype.findIndex()
     // Find the comment with this ID
     // delete the comment with the ID of 823423
-    const index = comments.findIndex(comment => comment.id === 823423);
-    console.log(index);
+    const index = comments.findIndex(e => e.id === 823423);
 
     // comments.splice(index, 1);
 
@@ -63,6 +51,8 @@
       ...comments.slice(index + 1)
     ];
 
+    console.table(newComments);
+
   </script>
 </body>
 </html>
diff --git a/08 - Fun with HTML5 Canvas/index-FINISHED.html b/08 - Fun with HTML5 Canvas/index-FINISHED.html
index f2c9b120fe..33d5588fd7 100644
--- a/08 - Fun with HTML5 Canvas/index-FINISHED.html	
+++ b/08 - Fun with HTML5 Canvas/index-FINISHED.html	
@@ -1,73 +1,63 @@
 <!DOCTYPE html>
 <html lang="en">
+
 <head>
   <meta charset="UTF-8">
   <title>HTML5 Canvas</title>
 </head>
-<body>
-<canvas id="draw" width="800" height="800"></canvas>
-<script>
-const canvas = document.querySelector('#draw');
-const ctx = canvas.getContext('2d');
-canvas.width = window.innerWidth;
-canvas.height = window.innerHeight;
-ctx.strokeStyle = '#BADA55';
-ctx.lineJoin = 'round';
-ctx.lineCap = 'round';
-ctx.lineWidth = 100;
-// ctx.globalCompositeOperation = 'multiply';
-
-let isDrawing = false;
-let lastX = 0;
-let lastY = 0;
-let hue = 0;
-let direction = true;
-
-function draw(e) {
-  if (!isDrawing) return; // stop the fn from running when they are not moused down
-  console.log(e);
-  ctx.strokeStyle = `hsl(${hue}, 100%, 50%)`;
-  ctx.beginPath();
-  // start from
-  ctx.moveTo(lastX, lastY);
-  // go to
-  ctx.lineTo(e.offsetX, e.offsetY);
-  ctx.stroke();
-  [lastX, lastY] = [e.offsetX, e.offsetY];
-
-  hue++;
-  if (hue >= 360) {
-    hue = 0;
-  }
-  if (ctx.lineWidth >= 100 || ctx.lineWidth <= 1) {
-    direction = !direction;
-  }
-
-  if(direction) {
-    ctx.lineWidth++;
-  } else {
-    ctx.lineWidth--;
-  }
-
-}
 
-canvas.addEventListener('mousedown', (e) => {
-  isDrawing = true;
-  [lastX, lastY] = [e.offsetX, e.offsetY];
-});
-
-
-canvas.addEventListener('mousemove', draw);
-canvas.addEventListener('mouseup', () => isDrawing = false);
-canvas.addEventListener('mouseout', () => isDrawing = false);
-
-</script>
-
-<style>
-  html, body {
-    margin: 0;
-  }
-</style>
+<body>
+  <canvas id="draw" width="800" height="800"></canvas>
+  <script>
+    const canvas = document.querySelector('#draw');
+    const ctx = canvas.getContext('2d');
+    canvas.width = window.innerWidth;
+    canvas.height = window.innerHeight;
+    ctx.globalCompositeOperation = 'multiply';
+    ctx.strokeStyle = '#BADA55';
+    ctx.lineJoin = 'round';
+    ctx.lineCap = 'round';
+    ctx.lineWidth = 100;
+
+    let isDrawing = false;
+    let lastX = 0;
+    let lastY = 0;
+    let hue = 0;
+    let lineWidthDirection = 1;
+
+    function draw(e) {
+      if (isDrawing) {
+        ctx.strokeStyle = `hsl(${hue}, 100%, 50%)`;
+
+        ctx.beginPath();
+        ctx.moveTo(lastX, lastY);
+        ctx.lineTo(e.offsetX, e.offsetY);
+        ctx.stroke();
+
+        hue = (hue + 1) % 360;
+
+        if (ctx.lineWidth >= 100 || ctx.lineWidth <= 1) {
+          lineWidthDirection *= -1;
+        }
+        ctx.lineWidth += lineWidthDirection;
+      }
+      [lastX, lastY] = [e.offsetX, e.offsetY];
+    }
+
+    canvas.addEventListener('mousemove', draw);
+    canvas.addEventListener('mousedown', () => isDrawing = true);
+    canvas.addEventListener('mouseup', () => isDrawing = false)
+    canvas.addEventListener('mouseout', () => isDrawing = false);
+
+  </script>
+
+  <style>
+    html,
+    body {
+      margin: 0;
+    }
+  </style>
 
 </body>
-</html>
+
+</html>
\ No newline at end of file
diff --git a/09 - Dev Tools Domination/index-FINISHED.html b/09 - Dev Tools Domination/index-FINISHED.html
index 55cd3a2f42..d8ebc67662 100644
--- a/09 - Dev Tools Domination/index-FINISHED.html	
+++ b/09 - Dev Tools Domination/index-FINISHED.html	
@@ -1,9 +1,11 @@
 <!DOCTYPE html>
 <html lang="en">
+
 <head>
   <meta charset="UTF-8">
   <title>Console Tricks!</title>
 </head>
+
 <body>
 
   <p onClick="makeGreen()">×BREAK×DOWN×</p>
@@ -18,37 +20,33 @@
     }
 
     // Regular
-    console.log('hello');
+    console.log('Hello');
 
     // Interpolated
-    console.log('Hello I am a %s string!', '💩');
+    console.log('Hello I am %s string', '#BADA55');
 
     // Styled
-    // console.log('%c I am some great text', 'font-size:50px; background:red; text-shadow: 10px 10px 0 blue')
+    console.log('%c I am some great text', 'font-size:50px; background: red; text-shadow: 10px 10px 0 blue');
 
     // warning!
-    console.warn('OH NOOO');
+    console.warn('Oh, no');
 
     // Error :|
-    console.error('Shit!');
+    console.error('Oh, shap!');
 
     // Info
-    console.info('Crocodiles eat 3-4 people per year');
+    console.info('This is a message logged with console#info');
 
     // Testing
     const p = document.querySelector('p');
-
-    console.assert(p.classList.contains('ouch'), 'That is wrong!');
+    console.assert(p.classList.contains('ouch'), 'You did not select the right Element!');
 
     // clearing
-    console.clear();
+    // console.clear();
 
     // Viewing DOM Elements
-    console.log(p);
     console.dir(p);
 
-    console.clear();
-
     // Grouping together
     dogs.forEach(dog => {
       console.groupCollapsed(`${dog.name}`);
@@ -59,31 +57,24 @@
     });
 
     // counting
-
-    console.count('Wes');
-    console.count('Wes');
-    console.count('Steve');
-    console.count('Steve');
-    console.count('Wes');
-    console.count('Steve');
-    console.count('Wes');
-    console.count('Steve');
-    console.count('Steve');
-    console.count('Steve');
-    console.count('Steve');
-    console.count('Steve');
+    console.count('He');
+    console.count('She');
+    console.count('He');
+    console.count('She');
 
     // timing
     console.time('fetching data');
-    fetch('https://api.github.com/users/wesbos')
+    fetch('https://api.github.com/users/webos')
       .then(data => data.json())
       .then(data => {
         console.timeEnd('fetching data');
         console.log(data);
       });
 
+    // table
     console.table(dogs);
 
   </script>
 </body>
-</html>
+
+</html>
\ No newline at end of file
diff --git a/10 - Hold Shift and Check Checkboxes/index-FINISHED.html b/10 - Hold Shift and Check Checkboxes/index-FINISHED.html
index d967b249cd..28ce63f570 100644
--- a/10 - Hold Shift and Check Checkboxes/index-FINISHED.html	
+++ b/10 - Hold Shift and Check Checkboxes/index-FINISHED.html	
@@ -1,12 +1,13 @@
 <!DOCTYPE html>
 <html lang="en">
+
 <head>
   <meta charset="UTF-8">
   <title>Hold Shift to Check Multiple Checkboxes</title>
 </head>
+
 <body>
   <style>
-
     html {
       font-family: sans-serif;
       background: #ffc600;
@@ -17,7 +18,7 @@
       margin: 50px auto;
       background: white;
       border-radius: 5px;
-      box-shadow: 10px 10px 0 rgba(0,0,0,0.1);
+      box-shadow: 10px 10px 0 rgba(0, 0, 0, 0.1);
     }
 
     .item {
@@ -30,8 +31,7 @@
       border-bottom: 0;
     }
 
-
-    input:checked + p {
+    input:checked+p {
       background: #F9F9F9;
       text-decoration: line-through;
     }
@@ -51,10 +51,10 @@
       border-left: 1px solid #D1E2FF;
     }
   </style>
-   <!--
+  <!--
    The following is a common layout you would see in an email client.
 
-   When a user clicks a checkbox, holds Shift, and then clicks another checkbox a few rows down, all the checkboxes in-between those two checkboxes should be checked.
+   When a user clicks a checkbox, holds Shift, and then clicks another checkbox a few rows down, all the checkboxes inbetween those two checkboxes should be checked.
 
   -->
   <div class="inbox">
@@ -80,7 +80,7 @@
     </div>
     <div class="item">
       <input type="checkbox">
-      <p>Try do it without any libraries</p>
+      <p>Try to do it without any libraries</p>
     </div>
     <div class="item">
       <input type="checkbox">
@@ -96,35 +96,27 @@
     </div>
   </div>
 
-<script>
-const checkboxes = document.querySelectorAll('.inbox input[type="checkbox"]');
-
-let lastChecked;
-
-function handleCheck(e) {
-  // Check if they had the shift key down
-  // AND check that they are checking it
-  let inBetween = false;
-  if (e.shiftKey && this.checked) {
-    // go ahead and do what we please
-    // loop over every single checkbox
-    checkboxes.forEach(checkbox => {
-      console.log(checkbox);
-      if (checkbox === this || checkbox === lastChecked) {
-        inBetween = !inBetween;
-        console.log('Starting to check them in between!');
+  <script>
+    const checkboxes = Array.from(document.querySelectorAll(".inbox input[type='checkbox']"));
+    checkboxes.forEach(cb => cb.addEventListener('click', onCheckBoxClick));
+
+    let lastCheckedIndex;
+
+    function onCheckBoxClick(e) {
+      if (e.shiftKey) {
+        let currIndex = checkboxes.findIndex(cb => cb === e.target);
+        if (lastCheckedIndex > currIndex) {
+          [lastCheckedIndex, currIndex] = [currIndex, lastCheckedIndex];
+        }
+        for (let i = lastCheckedIndex + 1; i < currIndex; i++) {
+          checkboxes[i].checked = !checkboxes[i].checked;
+        }
       }
 
-      if (inBetween) {
-        checkbox.checked = true;
-      }
-    });
-  }
-
-  lastChecked = this;
-}
+      lastCheckedIndex = checkboxes.findIndex(cb => cb === e.target);
+    }
 
-checkboxes.forEach(checkbox => checkbox.addEventListener('click', handleCheck));
-</script>
+  </script>
 </body>
-</html>
+
+</html>
\ No newline at end of file
diff --git a/11 - Custom Video Player/index.html b/11 - Custom Video Player/index.html
index 57b3260bc2..2a2e816883 100644
--- a/11 - Custom Video Player/index.html	
+++ b/11 - Custom Video Player/index.html	
@@ -19,6 +19,7 @@
        <input type="range" name="playbackRate" class="player__slider" min="0.5" max="2" step="0.1" value="1">
        <button data-skip="-10" class="player__button">« 10s</button>
        <button data-skip="25" class="player__button">25s »</button>
+       <button class="player__button fullscreen" title="Open full screen">▢</button>
      </div>
    </div>
 
diff --git a/11 - Custom Video Player/scripts-FINISHED.js b/11 - Custom Video Player/scripts-FINISHED.js
deleted file mode 100644
index 4656b218a7..0000000000
--- a/11 - Custom Video Player/scripts-FINISHED.js	
+++ /dev/null
@@ -1,55 +0,0 @@
-/* Get Our Elements */
-const player = document.querySelector('.player');
-const video = player.querySelector('.viewer');
-const progress = player.querySelector('.progress');
-const progressBar = player.querySelector('.progress__filled');
-const toggle = player.querySelector('.toggle');
-const skipButtons = player.querySelectorAll('[data-skip]');
-const ranges = player.querySelectorAll('.player__slider');
-
-/* Build out functions */
-function togglePlay() {
-  const method = video.paused ? 'play' : 'pause';
-  video[method]();
-}
-
-function updateButton() {
-  const icon = this.paused ? '►' : '❚ ❚';
-  console.log(icon);
-  toggle.textContent = icon;
-}
-
-function skip() {
- video.currentTime += parseFloat(this.dataset.skip);
-}
-
-function handleRangeUpdate() {
-  video[this.name] = this.value;
-}
-
-function handleProgress() {
-  const percent = (video.currentTime / video.duration) * 100;
-  progressBar.style.flexBasis = `${percent}%`;
-}
-
-function scrub(e) {
-  const scrubTime = (e.offsetX / progress.offsetWidth) * video.duration;
-  video.currentTime = scrubTime;
-}
-
-/* Hook up the event listeners */
-video.addEventListener('click', togglePlay);
-video.addEventListener('play', updateButton);
-video.addEventListener('pause', updateButton);
-video.addEventListener('timeupdate', handleProgress);
-
-toggle.addEventListener('click', togglePlay);
-skipButtons.forEach(button => button.addEventListener('click', skip));
-ranges.forEach(range => range.addEventListener('change', handleRangeUpdate));
-ranges.forEach(range => range.addEventListener('mousemove', handleRangeUpdate));
-
-let mousedown = false;
-progress.addEventListener('click', scrub);
-progress.addEventListener('mousemove', (e) => mousedown && scrub(e));
-progress.addEventListener('mousedown', () => mousedown = true);
-progress.addEventListener('mouseup', () => mousedown = false);
diff --git a/11 - Custom Video Player/scripts.js b/11 - Custom Video Player/scripts.js
index e69de29bb2..2781e2dea1 100644
--- a/11 - Custom Video Player/scripts.js	
+++ b/11 - Custom Video Player/scripts.js	
@@ -0,0 +1,62 @@
+/* Get elements */
+const player = document.querySelector('.player');
+const video = player.querySelector('.viewer');
+const progress = player.querySelector('.progress');
+const progressBar = progress.querySelector('.progress__filled');
+const toggle = player.querySelector('.toggle');
+const skipButtons = player.querySelectorAll('[data-skip]');
+const ranges = player.querySelectorAll('.player__slider');
+const fullscreen = player.querySelector('.fullscreen');
+
+/* Build functions */
+function togglePlay() {
+    const method = video.paused ? 'play' : 'pause';
+    video[method]();
+}
+
+function updatePlayPauseButton(e) {
+    const icon = e.type === 'pause' ? '▶' : '▮▮';
+    toggle.textContent = icon;
+}
+
+function skip(e) {
+    video.currentTime += parseFloat(this.dataset.skip);
+}
+
+function handleRangeUpdate(e) {
+    video[this.name] = this.value;
+}
+
+function handleProgress() {
+    const percent = video.currentTime / video.duration * 100;
+    progressBar.style.flexBasis = `${percent}%`;
+}
+
+function scrub(e) {
+    const scrubTime = (e.offsetX / progress.offsetWidth) * video.duration;
+    video.currentTime = scrubTime;
+}
+
+function goFullscreen() {
+    video.requestFullscreen();
+}
+
+/* Hook up the event listeners */
+video.addEventListener('click', togglePlay);
+video.addEventListener('play', updatePlayPauseButton);
+video.addEventListener('pause', updatePlayPauseButton);
+video.addEventListener('timeupdate', handleProgress);
+
+toggle.addEventListener('click', togglePlay);
+
+skipButtons.forEach(btn => btn.addEventListener('click', skip));
+
+ranges.forEach(range => range.addEventListener('change', handleRangeUpdate));
+
+let mousedown = false;
+progress.addEventListener('click', scrub);
+progress.addEventListener('mousemove', (e) => mousedown && scrub(e));
+progress.addEventListener('mousedown', () => mousedown = true);
+progress.addEventListener('mouseup', () => mousedown = false);
+
+fullscreen.addEventListener('click', goFullscreen);
diff --git a/12 - Key Sequence Detection/index-FINISHED.html b/12 - Key Sequence Detection/index-FINISHED.html
index 562127a0d2..21cb345a8c 100644
--- a/12 - Key Sequence Detection/index-FINISHED.html	
+++ b/12 - Key Sequence Detection/index-FINISHED.html	
@@ -7,19 +7,18 @@
 </head>
 <body>
 <script>
-const pressed = [];
-const secretCode = 'wesbos';
+  const pressed = [];
+  const secretCode = 'wesbos';
 
-window.addEventListener('keyup', (e) => {
-  console.log(e.key);
-  pressed.push(e.key);
-  pressed.splice(-secretCode.length - 1, pressed.length - secretCode.length);
-  if (pressed.join('').includes(secretCode)) {
-    console.log('DING DING!');
-    cornify_add();
-  }
-  console.log(pressed);
-});
+  window.addEventListener('keyup', (e) => {
+    pressed.push(e.key);
+    pressed.splice(-secretCode.length - 1, pressed.length - secretCode.length);
+  
+    if (pressed.join('') === secretCode) {
+      console.log('DING DING!');
+      cornify_add();
+    }
+  })
 </script>
 </body>
 </html>
diff --git a/13 - Slide in on Scroll/index-FINISHED.html b/13 - Slide in on Scroll/index-FINISHED.html
index 2f8c318d04..52c87d426e 100644
--- a/13 - Slide in on Scroll/index-FINISHED.html	
+++ b/13 - Slide in on Scroll/index-FINISHED.html	
@@ -56,18 +56,17 @@ <h1>Slide in on Scroll</h1>
         timeout = setTimeout(later, wait);
         if (callNow) func.apply(context, args);
       };
-    };
+    }
 
     const sliderImages = document.querySelectorAll('.slide-in');
 
-    function checkSlide() {
+    function checkSlide(e) {
       sliderImages.forEach(sliderImage => {
-        // half way through the image
-        const slideInAt = (window.scrollY + window.innerHeight) - sliderImage.height / 2;
-        // bottom of the image
-        const imageBottom = sliderImage.offsetTop + sliderImage.height;
-        const isHalfShown = slideInAt > sliderImage.offsetTop;
-        const isNotScrolledPast = window.scrollY < imageBottom;
+        const slideInAt = (window.scrollY + window.innerHeight) - sliderImage.height / 2; // half way through the image
+        const imageBottom = sliderImage.offsetTop + sliderImage.height; // bottom of the image
+        const isHalfShown = slideInAt >= sliderImage.offsetTop;
+        const isNotScrolledPast = window.scrollY <= imageBottom;
+
         if (isHalfShown && isNotScrolledPast) {
           sliderImage.classList.add('active');
         } else {
diff --git a/14 - JavaScript References VS Copying/index-FINISHED.html b/14 - JavaScript References VS Copying/index-FINISHED.html
index e6de86456b..37da57ddc7 100644
--- a/14 - JavaScript References VS Copying/index-FINISHED.html	
+++ b/14 - JavaScript References VS Copying/index-FINISHED.html	
@@ -8,53 +8,55 @@
 
   <script>
     // start with strings, numbers and booleans
-    // let age = 100;
-    // let age2 = age;
-    // console.log(age, age2);
-    // age = 200;
-    // console.log(age, age2);
-
-    // let name = 'Wes';
-    // let name2 = name;
-    // console.log(name, name2);
-    // name = 'wesley';
-    // console.log(name, name2);
+    let age = 100;
+    let age2 = age;
+    console.log(age, age2);
+    age = 200;
+    console.log(age, age2);
+
+    let name = 'Wes';
+    let name2 = name;
+    console.log(name, name2);
+    name = 'wesley';
+    console.log(name, name2);
 
     // Let's say we have an array
     const players = ['Wes', 'Sarah', 'Ryan', 'Poppy'];
 
     // and we want to make a copy of it.
-    const team = players;
 
-    console.log(players, team);
     // You might think we can just do something like this:
-    // team[3] = 'Lux';
+    const team = players;
 
     // however what happens when we update that array?
+    team[3] = 'Lux';
 
     // now here is the problem!
+    console.log(players, team);
 
     // oh no - we have edited the original array too!
 
     // Why? It's because that is an array reference, not an array copy. They both point to the same array!
 
     // So, how do we fix this? We take a copy instead!
-    const team2 = players.slice();
-
+  
     // one way
+    const team2 = players.slice();
 
     // or create a new array and concat the old one in
     const team3 = [].concat(players);
 
     // or use the new ES6 Spread
     const team4 = [...players];
+
+    // now when we update it, the original one isn't changed
     team4[3] = 'heeee hawww';
-    console.log(team4);
+    console.log({team4});
+    console.log({players});
 
+    // btw yet one more way to create a copy of the array
     const team5 = Array.from(players);
 
-    // now when we update it, the original one isn't changed
-
     // The same thing goes for objects, let's say we have a person object
 
     // with Objects
@@ -62,37 +64,47 @@
       name: 'Wes Bos',
       age: 80
     };
+    console.log({person});
 
     // and think we make a copy:
-    // const captain = person;
-    // captain.number = 99;
+    const captain = person;
+    captain.number = 99;
+    console.log({person});
+    console.log({captain});
 
     // how do we take a copy instead?
-    const cap2 = Object.assign({}, person, { number: 99, age: 12 });
-    console.log(cap2);
+    const cap2 = Object.assign({}, person, {number: 999});
+    console.log({person});
+    console.log({cap2});
 
     // We will hopefully soon see the object ...spread
-    // const cap3 = {...person};
+    const cap3 = {...person};
+    cap3.number = 9999;
+    console.log({person});
+    console.log({cap3});
 
     // Things to note - this is only 1 level deep - both for Arrays and Objects. lodash has a cloneDeep method, but you should think twice before using it.
-
     const wes = {
       name: 'Wes',
-      age: 100,
       social: {
         twitter: '@wesbos',
         facebook: 'wesbos.developer'
       }
     };
 
-    console.clear();
-    console.log(wes);
+    console.log({wes});
 
     const dev = Object.assign({}, wes);
+    dev.social.twitter = '@myOwnPage';
+    // oh no, social.twitter changed on the original object as well:
+    console.log({wes});
+    console.log({dev});
 
+    // here is one way to perform a deep copy
     const dev2 = JSON.parse(JSON.stringify(wes));
-
-
+    dev2.social.twitter = '@somethingElse';
+    console.log({wes});
+    console.log({dev2});
   </script>
 
 </body>
diff --git a/15 - LocalStorage/index-FINISHED.html b/15 - LocalStorage/index-FINISHED.html
index 2c492b1088..999d8b3d1d 100644
--- a/15 - LocalStorage/index-FINISHED.html	
+++ b/15 - LocalStorage/index-FINISHED.html	
@@ -19,7 +19,7 @@ <h2>LOCAL TAPAS</h2>
     <ul class="plates">
       <li>Loading Tapas...</li>
     </ul>
-    <form class="add-items">
+    <form class="add-items" method="POST">
       <input type="text" name="item" placeholder="Item Name" required>
       <input type="submit" value="+ Add Item">
     </form>
@@ -28,20 +28,27 @@ <h2>LOCAL TAPAS</h2>
 <script>
   const addItems = document.querySelector('.add-items');
   const itemsList = document.querySelector('.plates');
-  const items = JSON.parse(localStorage.getItem('items')) || [];
+  const items = loadItems();
+
+  function loadItems() {
+    return JSON.parse(localStorage.getItem('items')) || [];
+  }
+
+  function saveItems(items) {
+    localStorage.setItem('items', JSON.stringify(items));
+  }
 
   function addItem(e) {
-    e.preventDefault();
+    e.preventDefault(); // prevents the form from being submitted and the page being refreshed
     const text = (this.querySelector('[name=item]')).value;
     const item = {
       text,
       done: false
     };
-
     items.push(item);
     populateList(items, itemsList);
-    localStorage.setItem('items', JSON.stringify(items));
-    this.reset();
+    saveItems(items);
+    this.reset(); // clears the form
   }
 
   function populateList(plates = [], platesList) {
@@ -51,7 +58,7 @@ <h2>LOCAL TAPAS</h2>
           <input type="checkbox" data-index=${i} id="item${i}" ${plate.done ? 'checked' : ''} />
           <label for="item${i}">${plate.text}</label>
         </li>
-      `;
+      `
     }).join('');
   }
 
@@ -60,15 +67,13 @@ <h2>LOCAL TAPAS</h2>
     const el = e.target;
     const index = el.dataset.index;
     items[index].done = !items[index].done;
-    localStorage.setItem('items', JSON.stringify(items));
-    populateList(items, itemsList);
+    saveItems(items);
   }
 
   addItems.addEventListener('submit', addItem);
   itemsList.addEventListener('click', toggleDone);
 
   populateList(items, itemsList);
-
 </script>
 
 
diff --git a/16 - Mouse Move Shadow/index-finished.html b/16 - Mouse Move Shadow/index-finished.html
index fdf6035afd..f96e75f2b8 100644
--- a/16 - Mouse Move Shadow/index-finished.html	
+++ b/16 - Mouse Move Shadow/index-finished.html	
@@ -37,27 +37,26 @@ <h1 contenteditable>🔥WOAH!</h1>
 <script>
   const hero = document.querySelector('.hero');
   const text = hero.querySelector('h1');
-  const walk = 500; // 500px
+  const walk = 256; // 256px
 
   function shadow(e) {
     const { offsetWidth: width, offsetHeight: height } = hero;
     let { offsetX: x, offsetY: y } = e;
 
     if (this !== e.target) {
-      x = x + e.target.offsetLeft;
-      y = y + e.target.offsetTop;
+      x += e.target.offsetLeft;
+      y += e.target.offsetTop;
     }
 
     const xWalk = Math.round((x / width * walk) - (walk / 2));
     const yWalk = Math.round((y / height * walk) - (walk / 2));
 
     text.style.textShadow = `
-      ${xWalk}px ${yWalk}px 0 rgba(255,0,255,0.7),
-      ${xWalk * -1}px ${yWalk}px 0 rgba(0,255,255,0.7),
-      ${yWalk}px ${xWalk * -1}px 0 rgba(0,255,0,0.7),
-      ${yWalk * -1}px ${xWalk}px 0 rgba(0,0,255,0.7)
+           ${xWalk}px      ${yWalk}px 0 rgba(255,   0, 255, 0.7),
+      ${xWalk * -1}px      ${yWalk}px 0 rgba(  0, 255, 255, 0.7),
+           ${yWalk}px ${xWalk * -1}px 0 rgba(  0, 255,   0, 0.7),
+      ${yWalk * -1}px      ${xWalk}px 0 rgba(  0,   0, 255, 0.7)
     `;
-
   }
 
   hero.addEventListener('mousemove', shadow);
diff --git a/17 - Sort Without Articles/index-FINISHED.html b/17 - Sort Without Articles/index-FINISHED.html
index 3dffe7b3e7..0236980a8b 100644
--- a/17 - Sort Without Articles/index-FINISHED.html	
+++ b/17 - Sort Without Articles/index-FINISHED.html	
@@ -46,20 +46,27 @@
   <ul id="bands"></ul>
 
 <script>
-const bands = ['The Plot in You', 'The Devil Wears Prada', 'Pierce the Veil', 'Norma Jean', 'The Bled', 'Say Anything', 'The Midway State', 'We Came as Romans', 'Counterparts', 'Oh, Sleeper', 'A Skylit Drive', 'Anywhere But Here', 'An Old Dog'];
+  const bands = ['The Plot in You', 'The Devil Wears Prada', 'Pierce the Veil', 'Norma Jean', 'The Bled', 'Say Anything', 'The Midway State', 'We Came as Romans', 'Counterparts', 'Oh, Sleeper', 'A Skylit Drive', 'Anywhere But Here', 'An Old Dog'];
 
-function strip(bandName) {
-  return bandName.replace(/^(a |the |an )/i, '').trim();
-}
+  function strip(bandName) {
+    const stopWords = ['A ', 'The ', 'Oh, ', 'An '];
 
-const sortedBands = bands.sort((a, b) => strip(a) > strip(b) ? 1 : -1);
+    let result = bandName;
+    for (let i = 0; i < stopWords.length; i++) {
+      if (bandName.startsWith(stopWords[i])) {
+        result = bandName.substring(stopWords[i].length);
+        break;
+      }
+    }
+    return result;
+  }
 
-document.querySelector('#bands').innerHTML =
-  sortedBands
-    .map(band => `<li>${band}</li>`)
-    .join('');
+  const sortedBands = bands.sort((a, b) => strip(a) > strip(b) ? 1 : -1);
 
-console.log(sortedBands);
+  document.querySelector('#bands').innerHTML =
+    sortedBands
+      .map(band => `<li>${band}</li>`)
+      .join('');
 
 </script>
 
diff --git a/18 - Adding Up Times with Reduce/index-FINISHED.html b/18 - Adding Up Times with Reduce/index-FINISHED.html
index 20d099644c..dafa505b83 100644
--- a/18 - Adding Up Times with Reduce/index-FINISHED.html	
+++ b/18 - Adding Up Times with Reduce/index-FINISHED.html	
@@ -182,26 +182,20 @@
     </li>
   </ul>
 <script>
+  function parseTime(timeStr) {
+    const [mins, secs] = timeStr.split(':').map(parseFloat);
+    return mins * 60 + secs; 
+  }
 
-  const timeNodes = Array.from(document.querySelectorAll('[data-time]'));
+  const videos = document.querySelectorAll('.videos li[data-time]');
+  const videoTimes = Array.from(videos).map(t => parseTime(t.dataset.time));
+  const totalTime = videoTimes.reduce((a, b) => a + b);
 
-  const seconds = timeNodes
-    .map(node => node.dataset.time)
-    .map(timeCode => {
-      const [mins, secs] = timeCode.split(':').map(parseFloat);
-      return (mins * 60) + secs;
-    })
-    .reduce((total, vidSeconds) => total + vidSeconds);
-
-    let secondsLeft = seconds;
-    const hours = Math.floor(secondsLeft / 3600);
-    secondsLeft = secondsLeft % 3600;
-
-    const mins = Math.floor(secondsLeft / 60);
-    secondsLeft = secondsLeft % 60;
-
-    console.log(hours, mins, secondsLeft);
+  const hours = Math.floor(totalTime / 3600);
+  const minutes = Math.floor(totalTime % 3600 / 60);
+  const seconds = totalTime % 60;
 
+  console.log(`Total time: ${hours} hours ${minutes} minutes ${seconds} seconds`);
 </script>
 </body>
 </html>
diff --git a/19 - Webcam Fun/index.html b/19 - Webcam Fun/index.html
index d4ffc4dc2a..3d95bd584a 100755
--- a/19 - Webcam Fun/index.html	
+++ b/19 - Webcam Fun/index.html	
@@ -10,7 +10,16 @@
   <div class="photobooth">
     <div class="controls">
       <button onClick="takePhoto()">Take Photo</button>
-<!--       <div class="rgb">
+      <div class="videoFilter">
+          Video Filter:
+          <input type="radio" id="redEffect" name="filter" value="redEffect" checked />
+          <label for="redEffect">Red Effect</label>
+          <input type="radio" id="rgbSplit" name="filter" value="rgbSplit" />
+          <label for="rgbSplit">RGB Split</label>
+          <input type="radio" id="greenScreen" name="filter" value="greenScreen" />
+          <label for="greenScreen">Green Screen</label>
+      </div>
+      <div class="rgb" style="display: none">
         <label for="rmin">Red Min:</label>
         <input type="range" min=0 max=255 name="rmin">
         <label for="rmax">Red Max:</label>
@@ -29,7 +38,7 @@
         <input type="range" min=0 max=255 name="bmin">
         <label for="bmax">Blue Max:</label>
         <input type="range" min=0 max=255 name="bmax">
-      </div> -->
+      </div>
     </div>
 
     <canvas class="photo"></canvas>
@@ -37,7 +46,7 @@
     <div class="strip"></div>
   </div>
 
-  <audio class="snap" src="http://wesbos.com/demos/photobooth/snap.mp3" hidden></audio>
+  <audio class="snap" src="snap.mp3" hidden></audio>
 
   <script src="scripts.js"></script>
 
diff --git a/19 - Webcam Fun/scripts-FINISHED.js b/19 - Webcam Fun/scripts-FINISHED.js
deleted file mode 100755
index df07fa123a..0000000000
--- a/19 - Webcam Fun/scripts-FINISHED.js	
+++ /dev/null
@@ -1,110 +0,0 @@
-const video = document.querySelector('.player');
-const canvas = document.querySelector('.photo');
-const ctx = canvas.getContext('2d');
-const strip = document.querySelector('.strip');
-const snap = document.querySelector('.snap');
-
-function getVideo() {
-  navigator.mediaDevices.getUserMedia({ video: true, audio: false })
-    .then(localMediaStream => {
-      console.log(localMediaStream);
-    
-//  DEPRECIATION : 
-//       The following has been depreceated by major browsers as of Chrome and Firefox.
-//       video.src = window.URL.createObjectURL(localMediaStream);
-//       Please refer to these:
-//       Depreceated  - https://developer.mozilla.org/en-US/docs/Web/API/URL/createObjectURL
-//       Newer Syntax - https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/srcObject
-      
-      video.srcObject = localMediaStream;
-      video.play();
-    })
-    .catch(err => {
-      console.error(`OH NO!!!`, err);
-    });
-}
-
-function paintToCanvas() {
-  const width = video.videoWidth;
-  const height = video.videoHeight;
-  canvas.width = width;
-  canvas.height = height;
-
-  return setInterval(() => {
-    ctx.drawImage(video, 0, 0, width, height);
-    // take the pixels out
-    let pixels = ctx.getImageData(0, 0, width, height);
-    // mess with them
-    // pixels = redEffect(pixels);
-
-    pixels = rgbSplit(pixels);
-    // ctx.globalAlpha = 0.8;
-
-    // pixels = greenScreen(pixels);
-    // put them back
-    ctx.putImageData(pixels, 0, 0);
-  }, 16);
-}
-
-function takePhoto() {
-  // played the sound
-  snap.currentTime = 0;
-  snap.play();
-
-  // take the data out of the canvas
-  const data = canvas.toDataURL('image/jpeg');
-  const link = document.createElement('a');
-  link.href = data;
-  link.setAttribute('download', 'handsome');
-  link.innerHTML = `<img src="${data}" alt="Handsome Man" />`;
-  strip.insertBefore(link, strip.firstChild);
-}
-
-function redEffect(pixels) {
-  for (let i = 0; i < pixels.data.length; i+=4) {
-    pixels.data[i + 0] = pixels.data[i + 0] + 200; // RED
-    pixels.data[i + 1] = pixels.data[i + 1] - 50; // GREEN
-    pixels.data[i + 2] = pixels.data[i + 2] * 0.5; // Blue
-  }
-  return pixels;
-}
-
-function rgbSplit(pixels) {
-  for (let i = 0; i < pixels.data.length; i+=4) {
-    pixels.data[i - 150] = pixels.data[i + 0]; // RED
-    pixels.data[i + 500] = pixels.data[i + 1]; // GREEN
-    pixels.data[i - 550] = pixels.data[i + 2]; // Blue
-  }
-  return pixels;
-}
-
-function greenScreen(pixels) {
-  const levels = {};
-
-  document.querySelectorAll('.rgb input').forEach((input) => {
-    levels[input.name] = input.value;
-  });
-
-  for (i = 0; i < pixels.data.length; i = i + 4) {
-    red = pixels.data[i + 0];
-    green = pixels.data[i + 1];
-    blue = pixels.data[i + 2];
-    alpha = pixels.data[i + 3];
-
-    if (red >= levels.rmin
-      && green >= levels.gmin
-      && blue >= levels.bmin
-      && red <= levels.rmax
-      && green <= levels.gmax
-      && blue <= levels.bmax) {
-      // take it out!
-      pixels.data[i + 3] = 0;
-    }
-  }
-
-  return pixels;
-}
-
-getVideo();
-
-video.addEventListener('canplay', paintToCanvas);
diff --git a/19 - Webcam Fun/scripts.js b/19 - Webcam Fun/scripts.js
index 00355f5a9c..adca806902 100644
--- a/19 - Webcam Fun/scripts.js	
+++ b/19 - Webcam Fun/scripts.js	
@@ -3,3 +3,108 @@ const canvas = document.querySelector('.photo');
 const ctx = canvas.getContext('2d');
 const strip = document.querySelector('.strip');
 const snap = document.querySelector('.snap');
+const videoFilter = document.querySelector('.videoFilter');
+const greenScreenFilter = videoFilter.querySelector('#greenScreen');
+const rgbButtons = document.querySelector('.rgb');
+
+function getVideo() {
+  navigator.mediaDevices.getUserMedia({ video: true, audio: false})
+    .then(localMediaStream => {
+      video.srcObject = localMediaStream;
+      video.play();
+      paintToCanvas();
+  })
+  .catch(err => {
+      console.error('OH NO!!!', err);
+  });
+}
+
+function paintToCanvas() {
+  const [width, height] = [video.videoWidth, video.videoHeight];
+  [canvas.width, canvas.height] = [width, height];
+
+  setInterval(() => {
+    if (!width || !height) return;
+
+    const filter = videoFilter.querySelector('input[name="filter"]:checked');
+    if (!filter) return;
+    const filterFunction = window[filter.value];
+    if (!typeof filterFunction === 'function') return;
+
+    ctx.drawImage(video, 0, 0, width, height);
+    let pixels = ctx.getImageData(0, 0, width, height);
+    pixels = filterFunction(pixels);
+    ctx.putImageData(pixels, 0, 0);
+  }, 16);
+}
+
+function takePhoto() {
+  // play the sound
+  snap.currentTime = 0;
+  snap.play();
+
+  // take the data out of the canvas
+  const data = canvas.toDataURL('image/jpeg');
+  const link = document.createElement('a');
+  link.href = data;
+  link.setAttribute('download', 'handsome');
+  link.innerHTML = `<img src="${data}" alt="Handsome Man" />`;
+  strip.insertBefore(link, strip.firstChild);
+}
+
+function redEffect(pixels) {
+  for (let i = 0; i < pixels.data.length; i+=4) {
+      pixels.data[i + 0] = pixels.data[i + 0] + 100; // RED
+      pixels.data[i + 1] = pixels.data[i + 1] - 50;  // GREEN
+      pixels.data[i + 2] = pixels.data[i + 2] * 0.5; // BLUE
+  }
+  return pixels;
+}
+
+function rgbSplit(pixels) {
+  for (let i = 0; i < pixels.data.length; i+=4) {
+      pixels.data[i - 150] = pixels.data[i + 0]; // RED
+      pixels.data[i + 500] = pixels.data[i + 1];  // GREEN
+      pixels.data[i - 550] = pixels.data[i + 2]; // BLUE
+  }
+  return pixels;
+}
+
+function greenScreen(pixels) {
+  const levels = {};
+
+  rgbButtons.querySelectorAll('input').forEach((input) => {
+      levels[input.name] = input.value;
+  });
+
+  for (let i = 0; i < pixels.data.length; i+=4) {
+    const red = pixels.data[i + 0];
+    const green = pixels.data[i + 1];
+    const blue = pixels.data[i + 2];
+
+    if (red >= levels.rmin
+      && green >= levels.gmin
+      && blue >= levels.bmin
+      && red <= levels.rmax
+      && green <= levels.gmax
+      && blue <= levels.bmax) {
+      // take out the alpha property (i.e. hide the pixel)
+      pixels.data[i + 3] = 0;
+    }
+  }
+  return pixels;
+}
+
+function toggleRgbButtons(e) {
+  if (this === greenScreenFilter) {
+    rgbButtons.style.display = 'block';
+  } else {
+    rgbButtons.style.display = 'none';
+  }
+}
+
+getVideo();
+
+video.addEventListener('canplay', paintToCanvas);
+
+videoFilter.querySelectorAll('input[name="filter"]').forEach(cb => cb.addEventListener('change', toggleRgbButtons));
diff --git a/19 - Webcam Fun/snap.mp3 b/19 - Webcam Fun/snap.mp3
new file mode 100644
index 0000000000..16a288858a
Binary files /dev/null and b/19 - Webcam Fun/snap.mp3 differ
diff --git a/20 - Speech Detection/index-FINISHED.html b/20 - Speech Detection/index-FINISHED.html
index fdc53090d8..29b6939d56 100644
--- a/20 - Speech Detection/index-FINISHED.html	
+++ b/20 - Speech Detection/index-FINISHED.html	
@@ -12,33 +12,31 @@
 <script>
   window.SpeechRecognition = window.SpeechRecognition || window.webkitSpeechRecognition;
 
-  const recognition = new SpeechRecognition();
-  recognition.interimResults = true;
-  recognition.lang = 'en-US';
-  
-  let p = document.createElement('p');
+
   const words = document.querySelector('.words');
+  let p  = document.createElement('p');
   words.appendChild(p);
 
+  const recognition = new SpeechRecognition();
+  recognition.interimResults = true;
+
   recognition.addEventListener('result', e => {
     const transcript = Array.from(e.results)
       .map(result => result[0])
       .map(result => result.transcript)
       .join('');
-
-      const poopScript = transcript.replace(/poop|poo|shit|dump/gi, '💩');
-      p.textContent = poopScript;
-
-      if (e.results[0].isFinal) {
-        p = document.createElement('p');
-        words.appendChild(p);
-      }
+    
+    p.textContent = transcript;
+    if (e.results[0].isFinal) {
+      p  = document.createElement('p');
+      words.appendChild(p);
+    }
   });
 
+  // continuously try to record and recognize the voice
   recognition.addEventListener('end', recognition.start);
 
   recognition.start();
-
 </script>
 
 
diff --git a/21 - Geolocation/index-FINISHED.html b/21 - Geolocation/index-FINISHED.html
index 7a8f6db18a..b83141a63e 100644
--- a/21 - Geolocation/index-FINISHED.html	
+++ b/21 - Geolocation/index-FINISHED.html	
@@ -14,6 +14,8 @@ <h1 class="speed">
     <span class="units">KM/H</span>
   </h1>
 
+  <div class="map"></div>
+
   <style>
     html {
       font-size: 100px;
@@ -56,19 +58,50 @@ <h1 class="speed">
     .units {
       font-size: 15px;
     }
+
+    .map {
+      height: 375px;
+      width: 100%;
+    }
     /*Compass: https://thenounproject.com/search/?q=compass&i=592352*/
   </style>
   <script>
     const arrow = document.querySelector('.arrow');
     const speed = document.querySelector('.speed-value');
 
+    function handleLocationError(err) {
+      console.error(err);
+      alert('HEY! YOU GOTTA ALLOW THAT TO HAPPEN!!!');
+    }
     navigator.geolocation.watchPosition((data) => {
       console.log(data);
-      speed.textContent = data.coords.speed;
-      arrow.style.transform = `rotate(${data.coords.heading}deg)`;
-    }, (err) => {
-      console.error(err);
-    });
+      speed.textContent = data.coords.speed || 0;
+      arrow.style.transform = `rotate(${data.coords.heading || 0}deg)`;
+    }, handleLocationError);
+
+    // Google Map specific code
+    function initMap() {
+      const map = new google.maps.Map(document.querySelector('.map'), {
+        center: {lat: 40.713, lng: -74.006},
+        zoom: 6
+      });
+
+      const infoWindow = new google.maps.InfoWindow;
+
+      navigator.geolocation.getCurrentPosition( position => {
+        const pos = {
+          lat: position.coords.latitude,
+          lng: position.coords.longitude
+        };
+
+        infoWindow.setPosition(pos);
+        infoWindow.setContent('Location found.');
+        infoWindow.open(map);
+        map.setCenter(pos);
+      }, handleLocationError);
+    }
   </script>
+
+  <script async defer src="https://maps.googleapis.com/maps/api/js?key=AIzaSyALU94pLkit5lx_QU62wnzOsO6y1H_BWfI&callback=initMap"></script>
 </body>
 </html>
diff --git a/22 - Follow Along Link Highlighter/index-FINISHED.html b/22 - Follow Along Link Highlighter/index-FINISHED.html
index 869d8dab94..e7f776d529 100644
--- a/22 - Follow Along Link Highlighter/index-FINISHED.html	
+++ b/22 - Follow Along Link Highlighter/index-FINISHED.html	
@@ -25,31 +25,28 @@
       <p>Aliquam <a href="">dicta</a> sequi culpa fugiat <a href="">consequuntur</a> pariatur optio ad minima, maxime <a href="">odio</a>, distinctio magni impedit tempore enim repellendus <a href="">repudiandae</a> quas!</p>
     </div>
 
-<script>
-  const triggers = document.querySelectorAll('a');
-  const highlight = document.createElement('span');
-  highlight.classList.add('highlight');
-  document.body.appendChild(highlight);
-
-  function highlightLink() {
-    const linkCoords = this.getBoundingClientRect();
-    console.log(linkCoords);
-    const coords = {
-      width: linkCoords.width,
-      height: linkCoords.height,
-      top: linkCoords.top + window.scrollY,
-      left: linkCoords.left + window.scrollX
-    };
-
-    highlight.style.width = `${coords.width}px`;
-    highlight.style.height = `${coords.height}px`;
-    highlight.style.transform = `translate(${coords.left}px, ${coords.top}px)`;
-
-  }
-
-  triggers.forEach(a => a.addEventListener('mouseenter', highlightLink));
-
-</script>
+  <script>
+    const triggers = document.querySelectorAll('a');
+    const highlight = document.createElement('span');
+    highlight.classList.add('highlight');
+    document.body.append(highlight);
+
+    function highlightLink() {
+      const linkCoords = this.getBoundingClientRect();
+      const coords = {
+        width: linkCoords.width,
+        height: linkCoords.height,
+        top: linkCoords.top + window.scrollY,
+        left: linkCoords.left + window.scrollX
+      }
+
+      highlight.style.width = `${coords.width}px`;
+      highlight.style.height = `${coords.height}px`;
+      highlight.style.transform = `translate(${coords.left}px, ${coords.top}px)`;
+    }
+
+    triggers.forEach(a => a.addEventListener('mouseenter', highlightLink));
+  </script>
 </body>
 </html>
 
diff --git a/23 - Speech Synthesis/index-FINISHED.html b/23 - Speech Synthesis/index-FINISHED.html
index 5ea9a4a8e7..5a790c3f17 100644
--- a/23 - Speech Synthesis/index-FINISHED.html	
+++ b/23 - Speech Synthesis/index-FINISHED.html	
@@ -30,17 +30,17 @@ <h1>The Voiceinator 5000</h1>
 
 <script>
   const msg = new SpeechSynthesisUtterance();
+  msg.text = document.querySelector('[name="text"]').value;
+
   let voices = [];
   const voicesDropdown = document.querySelector('[name="voice"]');
   const options = document.querySelectorAll('[type="range"], [name="text"]');
   const speakButton = document.querySelector('#speak');
   const stopButton = document.querySelector('#stop');
-  msg.text = document.querySelector('[name="text"]').value;
 
   function populateVoices() {
     voices = this.getVoices();
     voicesDropdown.innerHTML = voices
-      .filter(voice => voice.lang.includes('en'))
       .map(voice => `<option value="${voice.name}">${voice.name} (${voice.lang})</option>`)
       .join('');
   }
@@ -58,17 +58,15 @@ <h1>The Voiceinator 5000</h1>
   }
 
   function setOption() {
-    console.log(this.name, this.value);
     msg[this.name] = this.value;
     toggle();
   }
-
+  
   speechSynthesis.addEventListener('voiceschanged', populateVoices);
   voicesDropdown.addEventListener('change', setVoice);
   options.forEach(option => option.addEventListener('change', setOption));
   speakButton.addEventListener('click', toggle);
   stopButton.addEventListener('click', () => toggle(false));
-
 </script>
 
 </body>
diff --git a/24 - Sticky Nav/index-FINISHED.html b/24 - Sticky Nav/index-FINISHED.html
index 37dd5ac3a4..e4fb7a0254 100644
--- a/24 - Sticky Nav/index-FINISHED.html	
+++ b/24 - Sticky Nav/index-FINISHED.html	
@@ -2,7 +2,7 @@
 <html lang="en">
 <head>
   <meta charset="UTF-8">
-  <title>Document</title>
+  <title>Sticky Nav</title>
   <link rel="stylesheet" href="style-FINISHED.css">
 </head>
 <body>
@@ -23,6 +23,7 @@ <h1>A story about getting lost.</h1>
   </nav>
 
   <div class="site-wrap">
+
     <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Tempore tempora rerum, est autem cupiditate, corporis a qui libero ipsum delectus quidem dolor at nulla, adipisci veniam in reiciendis aut asperiores omnis blanditiis quod quas laborum nam! Fuga ad tempora in aspernatur pariatur fugit quibusdam dolores sunt esse magni, ut, dignissimos.</p>
     <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Tempore tempora rerum, est autem cupiditate, corporis a qui libero ipsum delectus quidem dolor at nulla, adipisci veniam in reiciendis aut asperiores omnis blanditiis quod quas laborum nam! Fuga ad tempora in aspernatur pariatur fugit quibusdam dolores sunt esse magni, ut, dignissimos.</p>
     <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Tempore tempora rerum, est autem cupiditate, corporis a qui libero ipsum delectus quidem dolor at nulla, adipisci veniam in reiciendis aut asperiores omnis blanditiis quod quas laborum nam! Fuga ad tempora in aspernatur pariatur fugit quibusdam dolores sunt esse magni, ut, dignissimos.</p>
@@ -33,35 +34,42 @@ <h1>A story about getting lost.</h1>
     <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Tempore tempora rerum, est autem cupiditate, corporis a qui libero ipsum delectus quidem dolor at nulla, adipisci veniam in reiciendis aut asperiores omnis blanditiis quod quas laborum nam! Fuga ad tempora in aspernatur pariatur fugit quibusdam dolores sunt esse magni, ut, dignissimos.</p>
     <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Tempore tempora rerum, est autem cupiditate, corporis a qui libero ipsum delectus quidem dolor at nulla, adipisci veniam in reiciendis aut asperiores omnis blanditiis quod quas laborum nam! Fuga ad tempora in aspernatur pariatur fugit quibusdam dolores sunt esse magni, ut, dignissimos.</p>
     <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Tempore tempora rerum, est autem cupiditate, corporis a qui libero ipsum delectus quidem dolor at nulla, adipisci veniam in reiciendis aut asperiores omnis blanditiis quod quas laborum nam! Fuga ad tempora in aspernatur pariatur fugit quibusdam dolores sunt esse magni, ut, dignissimos.</p>
+
     <img src="http://unsplash.it/400/400" class="align-left slide-in">
+
     <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Voluptates, deserunt facilis et iste corrupti omnis tenetur est. Iste ut est dicta dolor itaque adipisci, dolorum minima, veritatis earum provident error molestias. Ratione magni illo sint vel velit ut excepturi consectetur suscipit, earum modi accusamus voluptatem nostrum, praesentium numquam, reiciendis voluptas sit id quisquam. Consequatur in quis reprehenderit modi perspiciatis necessitatibus saepe, quidem, suscipit iure natus dignissimos ipsam, eligendi deleniti accusantium, rerum quibusdam fugit perferendis et optio recusandae sed ratione. Culpa, dolorum reprehenderit harum ab voluptas fuga, nisi eligendi natus maiores illum quas quos et aperiam aut doloremque optio maxime fugiat doloribus. Eum dolorum expedita quam, nesciunt</p>
+
     <img src="http://unsplash.it/400/400" class="align-right slide-in">
+
     <p> at provident praesentium atque quas rerum optio dignissimos repudiandae ullam illum quibusdam. Vel ad error quibusdam, illo ex totam placeat. Quos excepturi fuga, molestiae ea quisquam minus, ratione dicta consectetur officia omnis, doloribus voluptatibus? Veniam ipsum veritatis architecto, provident quas consequatur doloremque quam quidem earum expedita, ad delectus voluptatum, omnis praesentium nostrum qui aspernatur ea eaque adipisci et cumque ab? Ea voluptatum dolore itaque odio. Eius minima distinctio harum, officia ab nihil exercitationem. Tempora rem nemo nam temporibus molestias facilis minus ipsam quam doloribus consequatur debitis nesciunt tempore officiis aperiam quisquam, molestiae voluptates cum, fuga culpa. Distinctio accusamus quibusdam, tempore perspiciatis dolorum optio facere consequatur quidem ullam beatae architecto, ipsam sequi officiis dignissimos amet impedit natus necessitatibus tenetur repellendus dolor rem! Dicta dolorem, iure, facilis illo ex nihil ipsa amet officia, optio temporibus eum autem odit repellendus nisi. Possimus modi, corrupti error debitis doloribus dicta libero earum, sequi porro ut excepturi nostrum ea voluptatem nihil culpa? Ullam expedita eligendi obcaecati reiciendis velit provident omnis quas qui in corrupti est dolore facere ad hic, animi soluta assumenda consequuntur reprehenderit! Voluptate dolor nihil veniam laborum voluptas nisi pariatur sed optio accusantium quam consectetur, corrupti, sequi et consequuntur, excepturi doloremque. Tempore quis velit corporis neque fugit non sequi eaque rem hic. Facere, inventore, aspernatur. Accusantium modi atque, asperiores qui nobis soluta cumque suscipit excepturi possimus doloremque odit saepe perferendis temporibus molestiae nostrum voluptatum quis id sint quidem nesciunt culpa. Rerum labore dolor beatae blanditiis praesentium explicabo velit optio esse aperiam similique, voluptatem cum, maiores ipsa tempore. Reiciendis sed culpa atque inventore, nam ullam enim expedita consectetur id velit iusto alias vitae explicabo nemo neque odio reprehenderit soluta sint eaque. Aperiam, qui ut tenetur, voluptate doloremque officiis dicta quaerat voluptatem rerum natus magni. Eum amet autem dolor ullam.</p>
+
+
+
     <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Distinctio maiores adipisci quibusdam repudiandae dolor vero placeat esse sit! Quibusdam saepe aperiam explicabo placeat optio, consequuntur nihil voluptatibus expedita quia vero perferendis, deserunt et incidunt eveniet temporibus doloremque possimus facilis. Possimus labore, officia dolore! Eaque ratione saepe, alias harum laboriosam deserunt laudantium blanditiis eum explicabo placeat reiciendis labore iste sint. Consectetur expedita dignissimos, non quos distinctio, eos rerum facilis eligendi. Asperiores laudantium, rerum ratione consequatur, culpa consectetur possimus atque ab tempore illum non dolor nesciunt. Neque, rerum. A vel non incidunt, quod doloremque dignissimos necessitatibus aliquid laboriosam architecto at cupiditate commodi expedita in, quae blanditiis. Deserunt labore sequi, repellat laboriosam est, doloremque culpa reiciendis tempore excepturi. Enim nostrum fugit itaque vel corporis ullam sed tenetur ipsa qui rem quam error sint, libero. Laboriosam rem, ratione. Autem blanditiis laborum neque repudiandae quam, cumque, voluptate veritatis itaque, placeat veniam ad nisi. Expedita, laborum reprehenderit ratione soluta velit natus, odit mollitia. Corporis rerum minima fugiat in nostrum. Assumenda natus cupiditate hic quidem ex, quas, amet ipsum esse dolore facilis beatae maxime qui inventore, iste? Maiores dignissimos dolore culpa debitis voluptatem harum, excepturi enim reiciendis, tempora ab ipsam illum aspernatur quasi qui porro saepe iure sunt eligendi tenetur quaerat ducimus quas sequi omnis aperiam suscipit! Molestiae obcaecati officiis quo, ratione eveniet, provident pariatur. Veniam quasi expedita distinctio, itaque molestiae sequi, dolorum nisi repellendus quia facilis iusto dignissimos nam? Tenetur fugit quos autem nihil, perspiciatis expedita enim tempore, alias ab maiores quis necessitatibus distinctio molestias eum, quidem. Delectus impedit quidem laborum, fugit vel neque quo, ipsam, quasi aspernatur quas odio nihil? Veniam amet reiciendis blanditiis quis reprehenderit repudiandae neque, ab ducimus, odit excepturi voluptate saepe ipsam. Voluptatem eum error voluptas porro officiis, amet! Molestias, fugit, ut! Tempore non magnam, amet, facere ducimus accusantium eos veritatis neque.</p>
+
     <img src="http://unsplash.it/400/400" class="align-right slide-in">
+
     <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Distinctio maiores adipisci quibusdam repudiandae dolor vero placeat esse sit! Quibusdam saepe aperiam explicabo placeat optio, consequuntur nihil voluptatibus expedita quia vero perferendis, deserunt et incidunt eveniet temporibus doloremque possimus facilis. Possimus labore, officia dolore! Eaque ratione saepe, alias harum laboriosam deserunt laudantium blanditiis eum explicabo placeat reiciendis labore iste sint. Consectetur expedita dignissimos, non quos distinctio, eos rerum facilis eligendi. Asperiores laudantium, rerum ratione consequatur, culpa consectetur possimus atque ab tempore illum non dolor nesciunt. Neque, rerum. A vel non incidunt, quod doloremque dignissimos necessitatibus aliquid laboriosam architecto at cupiditate commodi expedita in, quae blanditiis. Deserunt labore sequi, repellat laboriosam est, doloremque culpa reiciendis tempore excepturi. Enim nostrum fugit itaque vel corporis ullam sed tenetur ipsa qui rem quam error sint, libero. Laboriosam rem, ratione. Autem blanditiis laborum neque repudiandae quam, cumque, voluptate veritatis itaque, placeat veniam ad nisi. Expedita, laborum reprehenderit ratione soluta velit natus, odit mollitia. Corporis rerum minima fugiat in nostrum. Assumenda natus cupiditate hic quidem ex, quas, amet ipsum esse dolore facilis beatae maxime qui inventore, iste? Maiores dignissimos dolore culpa debitis voluptatem harum, excepturi enim reiciendis, tempora ab ipsam illum aspernatur quasi qui porro saepe iure sunt eligendi tenetur quaerat ducimus quas sequi omnis aperiam suscipit! Molestiae obcaecati officiis quo, ratione eveniet, provident pariatur. Veniam quasi expedita distinctio, itaque molestiae sequi, dolorum nisi repellendus quia facilis iusto dignissimos nam? Tenetur fugit quos autem nihil, perspiciatis expedita enim tempore, alias ab maiores quis necessitatibus distinctio molestias eum, quidem. Delectus impedit quidem laborum, fugit vel neque quo, ipsam, quasi aspernatur quas odio nihil? Veniam amet reiciendis blanditiis quis reprehenderit repudiandae neque, ab ducimus, odit excepturi voluptate saepe ipsam. Voluptatem eum error voluptas porro officiis, amet! Molestias, fugit, ut! Tempore non magnam, amet, facere ducimus accusantium eos veritatis neque.</p>
     <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Distinctio maiores adipisci quibusdam repudiandae dolor vero placeat esse sit! Quibusdam saepe aperiam explicabo placeat optio, consequuntur nihil voluptatibus expedita quia vero perferendis, deserunt et incidunt eveniet temporibus doloremque possimus facilis. Possimus labore, officia dolore! Eaque ratione saepe, alias harum laboriosam deserunt laudantium blanditiis eum explicabo placeat reiciendis labore iste sint. Consectetur expedita dignissimos, non quos distinctio, eos rerum facilis eligendi. Asperiores laudantium, rerum ratione consequatur, culpa consectetur possimus atque ab tempore illum non dolor nesciunt. Neque, rerum. A vel non incidunt, quod doloremque dignissimos necessitatibus aliquid laboriosam architecto at cupiditate commodi expedita in, quae blanditiis. Deserunt labore sequi, repellat laboriosam est, doloremque culpa reiciendis tempore excepturi. Enim nostrum fugit itaque vel corporis ullam sed tenetur ipsa qui rem quam error sint, libero. Laboriosam rem, ratione. Autem blanditiis laborum neque repudiandae quam, cumque, voluptate veritatis itaque, placeat veniam ad nisi. Expedita, laborum reprehenderit ratione soluta velit natus, odit mollitia. Corporis rerum minima fugiat in nostrum. Assumenda natus cupiditate hic quidem ex, quas, amet ipsum esse dolore facilis beatae maxime qui inventore, iste? Maiores dignissimos dolore culpa debitis voluptatem harum, excepturi enim reiciendis, tempora ab ipsam illum aspernatur quasi qui porro saepe iure sunt eligendi tenetur quaerat ducimus quas sequi omnis aperiam suscipit! Molestiae obcaecati officiis quo, ratione eveniet, provident pariatur. Veniam quasi expedita distinctio, itaque molestiae sequi, dolorum nisi repellendus quia facilis iusto dignissimos nam? Tenetur fugit quos autem nihil, perspiciatis expedita enim tempore, alias ab maiores quis necessitatibus distinctio molestias eum, quidem. Delectus impedit quidem laborum, fugit vel neque quo, ipsam, quasi aspernatur quas odio nihil? Veniam amet reiciendis blanditiis quis reprehenderit repudiandae neque, ab ducimus, odit excepturi voluptate saepe ipsam. Voluptatem eum error voluptas porro officiis, amet! Molestias, fugit, ut! Tempore non magnam, amet, facere ducimus accusantium eos veritatis neque.</p>
   </div>
 
-  <script>
-    // Not a ton of code, but hard to
-    const nav = document.querySelector('#main');
-    let topOfNav = nav.offsetTop;
-
-    function fixNav() {
-      if (window.scrollY >= topOfNav) {
-        document.body.style.paddingTop = nav.offsetHeight + 'px';
-        document.body.classList.add('fixed-nav');
-      } else {
-        document.body.classList.remove('fixed-nav');
-        document.body.style.paddingTop = 0;
-      }
-    }
+<script>
+  const nav = document.querySelector('#main');
 
-    window.addEventListener('scroll', fixNav);
+  const topOfNav = nav.offsetTop;
 
-  </script>
+  function fixNav(e) {
+    if (window.scrollY >= topOfNav) {
+      document.body.style.paddingTop = nav.offsetHeight + 'px';
+      document.body.classList.add('fixed-nav');
+    } else {
+      document.body.style.paddingTop = 0;
+      document.body.classList.remove('fixed-nav');
+    }
+  }
 
+  window.addEventListener('scroll', fixNav);
+</script>
 
 </body>
 </html>
diff --git a/24 - Sticky Nav/style-FINISHED.css b/24 - Sticky Nav/style-FINISHED.css
index df1922580b..10cc50a6e0 100644
--- a/24 - Sticky Nav/style-FINISHED.css	
+++ b/24 - Sticky Nav/style-FINISHED.css	
@@ -25,10 +25,6 @@ body {
   transition: transform 0.5s;
 }
 
-body.fixed-nav .site-wrap {
-  transform: scale(1);
-}
-
 header {
   text-align: center;
   height: 50vh;
@@ -49,19 +45,27 @@ nav {
   background: black;
   top: 0;
   width: 100%;
-  transition:all 0.5s;
+  transition: all 0.5s;
   position: relative;
   z-index: 1;
 }
 
-body.fixed-nav nav {
+.fixed-nav nav {
   position: fixed;
-  box-shadow: 0 5px 0 rgba(0,0,0,0.1);
+  box-shadow: 0 5px rgba(0,0,0,0.1);
+}
+
+.fixed-nav li.logo {
+  max-width: 500px;
+}
+
+.fixed-nav .site-wrap {
+  transform: scale(1);
 }
 
 nav ul {
   margin: 0;
-  padding: 0;
+  padding:0;
   list-style: none;
   display: flex;
 }
@@ -78,7 +82,7 @@ li.logo {
   max-width: 0;
   overflow: hidden;
   background: white;
-  transition: all 0.5s;
+  transition: all .5s;
   font-weight: 600;
   font-size: 30px;
 }
@@ -87,10 +91,6 @@ li.logo a {
   color: black;
 }
 
-.fixed-nav li.logo {
-  max-width: 500px;
-}
-
 nav a {
   text-decoration: none;
   padding: 20px;
diff --git a/25 - Event Capture, Propagation, Bubbling and Once/index-FINISHED.html b/25 - Event Capture, Propagation, Bubbling and Once/index-FINISHED.html
index 6515565abd..826433de8c 100644
--- a/25 - Event Capture, Propagation, Bubbling and Once/index-FINISHED.html	
+++ b/25 - Event Capture, Propagation, Bubbling and Once/index-FINISHED.html	
@@ -40,26 +40,24 @@
   }
 </style>
 
-<button></button>
+<button>Click me!</button>
 <script>
   const divs = document.querySelectorAll('div');
   const button = document.querySelector('button');
 
   function logText(e) {
     console.log(this.classList.value);
-    // e.stopPropagation(); // stop bubbling!
-    // console.log(this);
+    e.stopPropagation(); // i.e. stop propagating the event to parents (if {capture: false}, i.e. bubbling) or children (if {capture: true})
   }
 
   divs.forEach(div => div.addEventListener('click', logText, {
-    capture: false,
-    once: true
+    capture: false
   }));
 
   button.addEventListener('click', () => {
     console.log('Click!!!');
   }, {
-    once: true
+    once: true // unbind upon firing the event
   });
 
 </script>
diff --git a/26 - Stripe Follow Along Nav/index-FINISHED.html b/26 - Stripe Follow Along Nav/index-FINISHED.html
index 90c6888b2d..e43c0598d8 100644
--- a/26 - Stripe Follow Along Nav/index-FINISHED.html	
+++ b/26 - Stripe Follow Along Nav/index-FINISHED.html	
@@ -161,7 +161,7 @@ <h2>Cool</h2>
     transform-origin: 50% 0;
     display: flex;
     justify-content: center;
-    opacity: 0;
+    opacity:0;
   }
 
   .dropdownBackground.open {
@@ -221,12 +221,15 @@ <h2>Cool</h2>
 
 <script>
   const triggers = document.querySelectorAll('.cool > li');
-  const background  = document.querySelector('.dropdownBackground');
-  const nav  = document.querySelector('.top');
+  const background = document.querySelector('.dropdownBackground');
+  const nav = document.querySelector('.top');
 
   function handleEnter() {
     this.classList.add('trigger-enter');
-    setTimeout(() => this.classList.contains('trigger-enter') && this.classList.add('trigger-enter-active'), 150);
+    setTimeout(
+      () => this.classList.contains('trigger-enter') && this.classList.add('trigger-enter-active'),
+      150
+    );
     background.classList.add('open');
 
     const dropdown = this.querySelector('.dropdown');
diff --git a/27 - Click and Drag/index-FINISHED.html b/27 - Click and Drag/index-FINISHED.html
index 52eb86628c..d5307daeb1 100644
--- a/27 - Click and Drag/index-FINISHED.html	
+++ b/27 - Click and Drag/index-FINISHED.html	
@@ -47,24 +47,24 @@
     scrollLeft = slider.scrollLeft;
   });
 
-  slider.addEventListener('mouseleave', () => {
+  slider.addEventListener('mouseup', () => {
     isDown = false;
     slider.classList.remove('active');
   });
 
-  slider.addEventListener('mouseup', () => {
+  slider.addEventListener('mouseleave', () => {
     isDown = false;
     slider.classList.remove('active');
   });
 
   slider.addEventListener('mousemove', (e) => {
-    if (!isDown) return;  // stop the fn from running
-    e.preventDefault();
+    if (!isDown) return;
+    e.preventDefault(); // prevent text selecting and other default behaviour
     const x = e.pageX - slider.offsetLeft;
-    const walk = (x - startX) * 3;
-    slider.scrollLeft = scrollLeft - walk;
+    const walk = x - startX;
+    const velocity = 3;
+    slider.scrollLeft = (scrollLeft - walk) * velocity;
   });
-
 </script>
 
   </body>
diff --git a/28 - Video Speed Controller/index-FINISHED.html b/28 - Video Speed Controller/index-FINISHED.html
index d1fa16a72e..993588720e 100644
--- a/28 - Video Speed Controller/index-FINISHED.html	
+++ b/28 - Video Speed Controller/index-FINISHED.html	
@@ -9,7 +9,6 @@
 
   <div class="wrapper">
     <video class="flex" width="765" height="430" src="http://clips.vorwaerts-gmbh.de/VfE_html5.mp4" loop controls></video>
-    <p>
     <div class="speed">
       <div class="speed-bar">1×</div>
     </div>
@@ -17,23 +16,22 @@
 
 <script>
   const speed = document.querySelector('.speed');
-  const bar = speed.querySelector('.speed-bar');
+  const bar = document.querySelector('.speed-bar');
   const video = document.querySelector('.flex');
 
   function handleMove(e) {
-      const y = e.pageY - this.offsetTop;
-      const percent = y / this.offsetHeight;
-      const min = 0.4;
-      const max = 4;
-      const height = Math.round(percent * 100) + '%';
-      const playbackRate = percent * (max - min) + min;
-      bar.style.height = height;
-      bar.textContent = playbackRate.toFixed(2) + '×';
-      video.playbackRate = playbackRate;
-    }
+    const y = e.pageY - this.offsetTop;
+    const percent = y / this.offsetHeight;
+    const min = 0.4;
+    const max = 4;
+    const height = Math.round(percent * 100) + '%';
+    const playbackRate = percent * (max - min) + min;
+    bar.textContent = playbackRate.toFixed(2) + 'x';
+    bar.style.height = height;
+    video.playbackRate = playbackRate;
+  }
 
   speed.addEventListener('mousemove', handleMove);
-
 </script>
 </body>
 </html>
diff --git a/29 - Countdown Timer/index.html b/29 - Countdown Timer/index.html
index d54f447dd9..a89bff0faa 100644
--- a/29 - Countdown Timer/index.html	
+++ b/29 - Countdown Timer/index.html	
@@ -24,6 +24,6 @@ <h1 class="display__time-left"></h1>
     </div>
   </div>
 
-  <script src="scripts-START.js"></script>
+  <script src="scripts-FINISHED.js"></script>
 </body>
 </html>
diff --git a/29 - Countdown Timer/scripts-FINISHED.js b/29 - Countdown Timer/scripts-FINISHED.js
index 581cadb270..070775bc1e 100644
--- a/29 - Countdown Timer/scripts-FINISHED.js	
+++ b/29 - Countdown Timer/scripts-FINISHED.js	
@@ -1,7 +1,7 @@
 let countdown;
 const timerDisplay = document.querySelector('.display__time-left');
 const endTime = document.querySelector('.display__end-time');
-const buttons = document.querySelectorAll('[data-time]');
+const buttons = document.querySelectorAll('button[data-time]');
 
 function timer(seconds) {
   // clear any existing timers
@@ -14,12 +14,12 @@ function timer(seconds) {
 
   countdown = setInterval(() => {
     const secondsLeft = Math.round((then - Date.now()) / 1000);
-    // check if we should stop it!
-    if(secondsLeft < 0) {
+    if (secondsLeft < 0) {
       clearInterval(countdown);
+      endTime.textContent = '';
+      alert('Time is up!');
       return;
     }
-    // display it
     displayTimeLeft(secondsLeft);
   }, 1000);
 }
@@ -27,17 +27,16 @@ function timer(seconds) {
 function displayTimeLeft(seconds) {
   const minutes = Math.floor(seconds / 60);
   const remainderSeconds = seconds % 60;
-  const display = `${minutes}:${remainderSeconds < 10 ? '0' : '' }${remainderSeconds}`;
-  document.title = display;
+  const display = `${minutes}:${remainderSeconds < 10 ? '0' : ''}${remainderSeconds}`;
   timerDisplay.textContent = display;
+  document.title = display;
 }
 
 function displayEndTime(timestamp) {
   const end = new Date(timestamp);
   const hour = end.getHours();
-  const adjustedHour = hour > 12 ? hour - 12 : hour;
   const minutes = end.getMinutes();
-  endTime.textContent = `Be Back At ${adjustedHour}:${minutes < 10 ? '0' : ''}${minutes}`;
+  endTime.textContent = `Be Back At ${hour > 12 ? hour - 12: hour}:${minutes < 10 ? '0' : ''}${minutes}`;
 }
 
 function startTimer() {
@@ -49,7 +48,6 @@ buttons.forEach(button => button.addEventListener('click', startTimer));
 document.customForm.addEventListener('submit', function(e) {
   e.preventDefault();
   const mins = this.minutes.value;
-  console.log(mins);
   timer(mins * 60);
   this.reset();
-});
+});
\ No newline at end of file
diff --git a/29 - Countdown Timer/scripts-START.js b/29 - Countdown Timer/scripts-START.js
deleted file mode 100644
index e69de29bb2..0000000000
diff --git a/30 - Whack A Mole/index-FINISHED.html b/30 - Whack A Mole/index-FINISHED.html
deleted file mode 100644
index 39bbc40836..0000000000
--- a/30 - Whack A Mole/index-FINISHED.html	
+++ /dev/null
@@ -1,87 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-<head>
-  <meta charset="UTF-8">
-  <title>Whack A Mole!</title>
-  <link href='https://fonts.googleapis.com/css?family=Amatic+SC:400,700' rel='stylesheet' type='text/css'>
-  <link rel="stylesheet" href="style.css">
-</head>
-<body>
-
-  <h1>Whack-a-mole! <span class="score">0</span></h1>
-  <button onClick="startGame()">Start!</button>
-
-  <div class="game">
-    <div class="hole hole1">
-      <div class="mole"></div>
-    </div>
-    <div class="hole hole2">
-      <div class="mole"></div>
-    </div>
-    <div class="hole hole3">
-      <div class="mole"></div>
-    </div>
-    <div class="hole hole4">
-      <div class="mole"></div>
-    </div>
-    <div class="hole hole5">
-      <div class="mole"></div>
-    </div>
-    <div class="hole hole6">
-      <div class="mole"></div>
-    </div>
-  </div>
-
-<script>
-  const holes = document.querySelectorAll('.hole');
-  const scoreBoard = document.querySelector('.score');
-  const moles = document.querySelectorAll('.mole');
-  let lastHole;
-  let timeUp = false;
-  let score = 0;
-
-  function randomTime(min, max) {
-    return Math.round(Math.random() * (max - min) + min);
-  }
-
-  function randomHole(holes) {
-    const idx = Math.floor(Math.random() * holes.length);
-    const hole = holes[idx];
-    if (hole === lastHole) {
-      console.log('Ah nah thats the same one bud');
-      return randomHole(holes);
-    }
-    lastHole = hole;
-    return hole;
-  }
-
-  function peep() {
-    const time = randomTime(200, 1000);
-    const hole = randomHole(holes);
-    hole.classList.add('up');
-    setTimeout(() => {
-      hole.classList.remove('up');
-      if (!timeUp) peep();
-    }, time);
-  }
-
-  function startGame() {
-    scoreBoard.textContent = 0;
-    timeUp = false;
-    score = 0;
-    peep();
-    setTimeout(() => timeUp = true, 10000)
-  }
-
-  function bonk(e) {
-    if(!e.isTrusted) return; // cheater!
-    score++;
-    this.parentNode.classList.remove('up');
-    scoreBoard.textContent = score;
-  }
-
-  moles.forEach(mole => mole.addEventListener('click', bonk));
-
-</script>
-</body>
-</html>