I've been using rechargable batteries lately. Between the Wii controllers, my translator, and new flash for my camera, I'm eating up loads of batteries.
But, for our trip, I grabbed a pack of batteries in case the flash needed them, instead of bringing yet another electrical device.
Usually when you open a pack of batterie, they open in the middle and then the others all fall out in the drawer. The Germans have invented an innovative and simple solution for this....just open the package for the batteries you need, and leave the others closed. Simple, and efficient!
;)