Geektastic:
I've tried many but none really worked for me better than a notebook and a pen to be honest.
If you add 3 highlighters to your list of tools (red, yellow and green) to mark importance/priority and if I were in a position of building a new team - you are hired!
The best part of that work management set of tools is having a black marker handy to cross-out already completed tasks :-)
P.S. You just need one-page to carry around and get blank list from the notebook when all tasks marked in "red" (urgent and important) had gone from the first list :-)

