There's a few threads about this over in Natural Home and Body Care...
I use cloth tp. My dh probably doesn't, but I don't know. We keep paper tp for guests and when I run out of cloth :LOL
I started with just using it for pee, but then I realized, hey poo is just poo! And then I started using it for BMs, too

My system is simple: I have a basket next to the toliet with rags in it. (Old t-shirts I cut up). After I use it, if there's anything solid on it, I rinse it off in the sink. Then it goes straight in the washing machine, where I wash it with my next load of laundry.
I've been surprised, actually, at how much cleaner my bum gets after using cloth... sorry if that was TMI, but it is kind of fun to me! :LOL