I've set up a memrise course for learning quick drop shortcuts.
Memrise uses spaced repetition which could be handy in nailing down these tricky to remember shortcuts.
It is available through their website or there is an app for on the go learning.
Edit (2/12/2016) : There are now 153 of the default shortcuts on the course to learn, please let me know if I have missed any. If anyone would like to contribute to the course that would be great