With the advent of quality LED lights I've noticed that I'm buying AAA batteries more than I used to. The same goes for AA. In the past, I would have a drawer full of D cells for flashlights and radios. Now I have a stock of AAA through D with a few 9 volts thrown in as well. If I ever get a Surefire or Inova I'll be looking at 123's too. Has anyone considered sticking to just one size of battery? If so, what size did you choose for your lights, radios, or other emergency/outdoor gadgets?

BTW: I hear that AAA Lithums will be available this year.

Chris