Remove Dashboard

Every mac user knows dashboard. 

'Isn't that the stupid nearly empty page with the weather on top that comes up when I switch workspaces the wrong way round?' 

Yes avatar of all annoying users, it is. 

'Disable it!'

No, it can not be done. 

...

Mavericks: But it can!

On the shell:
'defaults write com.apple.dashboard mcx-disabled -boolean true'

Restart & done! 

'Thank you, now make my battery last 20 hours!'