The other day I saw someone remove the Dashboard icon from the Dock as a way of disabling it entirely. Probably not the best route. It’s pretty easy though. The command to disable:
defaults write com.apple.dashboard mcx-disabled -boolean yes
And of course if you’ve disabled, you might want to turn it back on using this handy-dandy double-negative:
defaults write com.apple.dashboard mcx-disabled -boolean no
