While reading this thread I saw a few people talk about pissing on the playa, collecting urine, etc. and thought I would share my experience from last year.
My wife and I, having reached our majority some years back, have trouble making it through the night without at least one trip to the bathroom. Now, I wake up at 3AM with a drastic urge and I'm not ready to try and find the nearest potty in the dark. Because of that we bought a "Luggable Loo" at Twin Cities Surplus and used that to collect our urine at night. The next day we would go dump it in the nearest potty. Well, there was a makeshift tent next to us, the owners of which we never saw until we broke camp on Sunday. Apparently these two guys, from Sweden or Norway I think, had saved all their urine from the entire stay in 5-gallon water bottles inside the tent. Rather than take it to the potties they dumped it onto the playa outside of their tent as they were taking it down. You haven't lived until you get a whiff of week old piss!!! We gagged the whole time we packed up our stuff. It was horrible.
I don't know what this adds to the discussion except to let everyone know that if you collect your own waste, dump it in the JOTS ASAP. This year we are going to try kitty litter in plastic bags and cart it home.