Disable resume for all apps I would like to disable resume for all applications  by default (including newly install applications).

I know the following command will disable resume for a specific application (Safari in this case) 
defaults write com.apple.Safari NSQuitAlwaysKeepsWindows -bool false but I was wondering if there's a way to disable it permanently.
Uncheck Restore windows when quitting and re-opening apps under System Preferences -&gt; General.

In Mountain Lion, this option has been changed to read, Close windows when quitting an application with fine print to explain that open documents will not be restored.