I rarely use the dashboard. All these widgets can be fun, but I did not find one that would make me go to the dashboard regularly. I like gesture though and mission control. And I find that the dashboard is a waste of space when in mission control. So I looked around and saw this post
http://www.macworld.com.au/help/how-to-use-terminal-to-speed-up-mountain-lion-70147/#.UZ8GP5VR0TM . One of the tips is how to disable completely the dashboard. So here it is, in 2 commands, how to disable dashboard ( do not use sudo here, just your normal user ) :
defaults write com.apple.dashboard mcx-disabled -boolean YES
killall Dock