I've been poopin' in a bucket, and it works great!
I built a wood box with a toilet seat on it and a hole under which lives a 5gal bucket with a plastic bag liner. I use kitty litter to cover up and absorb. I use 2-3 cups of kitty litter each time. The beauty of this is that the bus lives in my driveway most of the time, and it is not practical to connect it to my house septic system. I don't want to have to drive somewhere to empty waste tanks. If I don't use it very often, I can go weeks without changing the bag, and it doesn't stink at all so long as I keep everything covered with the kitty litter. Then when it's time to change the bag, I just tie it up and plunk it in my garbage can on garbage pickup day. Just like emptying the litter box. Meow.
The only problem I've encountered is on trips with the whole family. The kids sometimes do not cover well enough, and then it stinks, and Dad gets pissed.
I think I will get a cassette style portable toilet for camping trips, so this way I can easily swap toilets depending on the need.