I'm not a fan of generators either. But I still haven't seen a need for one.
I had picked up an O2Cool 12v fan that came with a battery pack. The fan didn't make it, but the battery pack is great. It uses 4 D size batteries and has a cigarette lighter socket and a USB socket. I use it to charge my cell phone. I've charged my phone over 10 times, plus a friend's about 4 times and it is still on its first set of batteries.
I also have one of those car jumpstart/air compressor powerpacks. I charge it while on the road to my site, then use it to charge my netbook (if I use it) and run my mp3 player and speakers. I can also use it to run a small fan if needed.
All that leaves very little taking a charge out of my Group 31 AGM deep cycle battery. I use my RV lights at night when cooking, visiting with a friend, etc. If I'm just reading for a while, I use a AAA puck light - it doesn't keep the dogs awake. Outside, I use battery powered lanterns and flashlights.
That leaves the water pump using the battery on a regular basis. It only runs when a faucet is running, so I don't worry about it.