Batteries are interesting things. We put them in brand new, and then we forget about them until they die. Really they only get attention at the beginnings of their lives and at the ends. What about all the batteries that outlast us? Has it ever crossed your mind that when you put a battery in an appliance it may very well live after you’re dead? All those clocks ticking, cell phones ringing, and lights glowing will still tick, ring, and glow without you. It’s astounding what changes you can make in the world around you with such little effort. They’re changes that may seem small now, but maybe later they’ll be big to someone else—perhaps even after you’re gone. So, what sorts of things do you put batteries into?