Recently I have been buying a lot of AA batteries because I cant pass up a good deal.
Not counting rechargeables I have bought recently.. 20 x VARTA alkaline, 16 x Dick Smith alkaline, 4 Energizer Ultimate Lithium, 10 Energizer Advance Lithium, 20 OEM Energizer Ultimate lithium.
But the problem is the only thing I have that takes AA batteries my Jetbeam PA40 (I have eneloops for this).
I cant think of anything useful that I should buy to make use of some AAs.
Oh, my wife has one of those, She LOVES it! Uses it all the time, she does. Hours and hours of fun. She feels it was money well spent and a real crowd pleaser.
Okay, but do you have anything that requires "D" cell batteries, say like a boom-box or something or battery powered fan for summer time? If so, you can purchase these 3 x "AA" to "D" cell converters.
A Canon or Fuji digitial camera. A Syma S107 RC helicopter takes 6x AAs in the controller. Also easy to fly (indoors only!) and a lot of fun. You can get a full kit with the helicopter, controller, and a spare set of blades for about $26 from Amazon.
Pocket fan, all of my wall clocks, electric shaver (Shaveman!), trimmer, toothbrush, compact camera, round click lights, most of my kids toys and educational contraptions, our toys , a dancing santa and a couple remotes.