diff --git a/4chan_x.user.js b/4chan_x.user.js
index 1aa25ce09..d92799455 100644
--- a/4chan_x.user.js
+++ b/4chan_x.user.js
@@ -640,11 +640,58 @@
     }
   };
 
+  $.extend(Array.prototype, {
+    add: function(object, position) {
+      var keep;
+      keep = this.slice(position);
+      this.length = position;
+      this.push(object);
+      return this.pushArrays(keep);
+    },
+    contains: function(object) {
+      return this.indexOf(object) > -1;
+    },
+    indexOf: function(object) {
+      var i;
+      i = this.length;
+      while (i--) {
+        if (this[i] === object) {
+          break;
+        }
+      }
+      return i;
+    },
+    pushArrays: function() {
+      var arg, args, _i, _len;
+      args = arguments;
+      for (_i = 0, _len = args.length; _i < _len; _i++) {
+        arg = args[_i];
+        this.push.apply(this, arg);
+      }
+      return this;
+    },
+    remove: function(object) {
+      var index;
+      if ((index = this.indexOf(object)) > -1) {
+        return this.splice(index, 1);
+      } else {
+        return false;
+      }
+    }
+  });
+
+  $.extend(String.prototype, {
+    capitalize: function() {
+      return this.charAt(0).toUpperCase() + this.slice(1);
+    },
+    contains: function(string) {
+      return this.indexOf(string) > -1;
+    }
+  });
+
+  $.DAY = 24 * ($.HOUR = 60 * ($.MINUTE = 60 * ($.SECOND = 1000)));
+
   $.extend($, {
-    SECOND: 1000,
-    MINUTE: 1000 * 60,
-    HOUR: 1000 * 60 * 60,
-    DAY: 1000 * 60 * 60 * 24,
     engine: /WebKit|Presto|Gecko/.exec(navigator.userAgent)[0].toLowerCase(),
     id: function(id) {
       return d.getElementById(id);
diff --git a/lib/$.coffee b/lib/$.coffee
index 8220b4d4e..0180d39a1 100644
--- a/lib/$.coffee
+++ b/lib/$.coffee
@@ -3,6 +3,7 @@
 # not chainable
 $ = (selector, root=d.body) ->
   root.querySelector selector
+
 $$ = (selector, root=d.body) ->
   [root.querySelectorAll(selector)...]
 
@@ -11,11 +12,45 @@ $.extend = (object, properties) ->
     object[key] = val
   return
 
+# Various prototypes I've wanted or needed to add.
+$.extend Array::,
+  add: (object, position) ->
+    keep = @slice position
+    @length = position
+    @push object
+    @pushArrays keep
+
+  contains: (object) ->
+    @indexOf(object) > -1
+
+  indexOf: (object) ->
+    i = @length
+    while i--
+      break if @[i] is object
+    return i
+
+  pushArrays: ->
+    args = arguments
+    for arg in args
+      @push.apply @, arg
+    return @
+
+  remove: (object) ->
+    if (index = @indexOf object) > -1
+      @splice index, 1
+    else
+      false
+
+$.extend String::,
+  capitalize: ->
+    @charAt(0).toUpperCase() + @slice(1);
+
+  contains: (string) ->
+    @indexOf(string) > -1
+
+$.DAY = 24 * ($.HOUR = 60 * ($.MINUTE = 60 * ($.SECOND = 1000)))
+
 $.extend $,
-  SECOND: 1000
-  MINUTE: 1000 * 60
-  HOUR  : 1000 * 60 * 60
-  DAY   : 1000 * 60 * 60 * 24
   engine: /WebKit|Presto|Gecko/.exec(navigator.userAgent)[0].toLowerCase()
   id: (id) ->
     d.getElementById id