Move OS X Applications Folder

1.) Right Click on External Drive
2.) Expand "Sharing & Permissions"
3.) Click the Lock Button
4.) Uncheck "Ignore ownership on this volume"
5.) Click the Lock Button
6.) Drag Applications to the External Drive
7.) Authenticate
8.) Open Terminal
     A.) sudo mv /Applications /Apps
     B.) sudo ln -s /Volumes/DriveNameHere/Applications /Applications
9.) Reboot
10.) Trash /Apps
11.) Reboot
12.) Re-do your Dock (because Icons will be broken)