So I heard about this today via Mrs Stroller's BLW post. I never thought about it but I'm already 85% there!

Basically it's not using paper towels in your household and replacing them with cloth towels. Technically, there are "un paper towels' sold that are made out of cloth diaper material essentially. I wouldn't pay for it though I have so much washcloths I would just use those. Or make my own, the fabric is so cheap. It doesn't need to be fancy.
We already have designated washcloths for table wipe downs. Towels designated for drying towels. Towels for hand drying etc. We DO have paper towels but honestly we use them only for cleaning the glass table which we can easily have designated towels for those. And it's mainly guests that use the paper towels. When my MIL stayed with us a last year for 2 weeks we went through like a 6pack!!! It takes us like 6 months to go through that!

Anyway, are you a paper towel user or are you a UN paper towel user?
How do you get guests to NOT use paper towels. If you don't keep paper towels do your guests mess up your towel system?