I dropped a AA battery this morning, which conveniently rolled right under the fridge. Using a flashlight, I was able to see that it was about 12 inches (~30cm) back.
I tried reaching for it with a ruler, but that only pushed it back further. (Now it is about 18 inches (~45cm) back). Obviously I can't reach it with my bare hands, either. I'd very much like to not have to move the fridge, as it is rather full at the moment.
What household item(s) can I use to retrieve the battery?