Things to do when your unemployed #1

I've found an interesting thing to do when your unemployed and sitting at home. Take the batteries out all your cell powered appliances in your house/flat (remote controls, game console controllers, radon detectors etc) and check the little power bar. I don't know why I didn't do this sooner after all someone took the time to design a battery that you check the remaining power of so why not use it, unless there is an easier way of finding out when your batteries are empty...