I live in my truck with a large extended cab. I sleep in that back seat. I've filled in the foot area with extra blankets, etc so the whole area is my bed. My first choice is to use public bathrooms as much as possible. Grocery stores, the library are the cleanest, also coffee shops. For other times, I use a 2 gallon bucket in my bed area. That's it. To pee, I squat/sit on it. No seat. I do like the idea of pipe insulation on the rim, but I'm trying to be stealth & I move the bucket to the back of the truck during the day. Anyway, in the morning I pour it into a drink cup to dump in a toilet. Or if I can not be noticed, I dump in the dirt/rocks, out of the way. For #2, I use 2 plastic bags and litter or newspaper or dirt, whatever is available. I tie it up, bag it again, toss it in a public garbage can that's away from where people might be loitering!<br>I don't have odor because I empty right away, except for peeing at night. I've not had any trouble with the bucket tipping, I think because it is small. I know this wouldn't work for everyone. I'm small and nimble with strong legs! It is a good workout and women are used to squatting over public toilets to pee anyway!