photo credit: zoovrooWhen a new user is created in OSX, the Dock is prepopulated with a set of icons. Dragging the icons off the dock removes them. You are free to customize the Dock by placing your frequently used icons there.
There may be an occasion where you need to restore the Dock to it’s default set of application icons. This is pretty easy with a bit of Terminal-fu.
Open the Terminal application by Navigating through Go->Utilities->Terminal
When the terminal window opens type
This will delete the configuration file for the dock. Log out and back in and the Dock should look the way it did when you first created your user account.
If you have any other interesting Mac tricks, let us know.