If there is one thing I will not sacrifice, it's toilet paper. There's nothing I hate more than one-ply, but I've gone over this before. I mean, with the one ply, you have to fold it over like 20 times (or make a huge ball if you're a "wadder") before it's even usable.
Also, isn't toilet paper manufactured from plantation trees? I'm sort of a critic when it comes to recycling because I think there are a lot of flaws in how it's carried out (and mandated). Paper is abundant and renewable. If people are concerned about so many trees getting cut down, then talk to Wal-Mart.
Seriously; of all the problems affecting our environment and all the little things that could make a huge difference (using CFL's over incandescents, not driving a Hummer H2, holding in your farts,
not having 12 kids, etc.) using less toilet paper shouldn't be too high anyone's list.
PS - I want one of those Japanese toilets with the built in bidet's.
If you're a battery, you're either working or you're dead....