Mac OS X only: Sick of not being able to exit Finder? A quick terminal command will add a “quit” option to the menu in Finder. This means you can run Finder like any other Mac application. If you’re running some heavy applications, simply close Finder and enjoy the extra, albeit small, processing power. Open a terminal and enter the following command:
defaults write com.apple.Finder QuitMenuItem 1
You will need to restart for the changes to take effect. Here’s the caveat: Finder also manages the icons on your desktop. If you exit Finder, you won’t be able to see any of the icons on your desktop. Just click the icon in the dock to bring Finder back.