It makes using a portable potty feel a little more elegant, without having to lug around a whole bucket. However, you are still left with a bag of waste to carry, alongside your toilet ...
If none of these are around, you can always tie up your stuff tightly in a plastic bag (they often come with portable toilets) and throw it in the trash. This, of course, only works for solids.
Carrying a bag of dook around and beyond camp may not exactly sound glamorous or even palatable, but neither are the existing alternatives. Traditional portable toilets use a mixture of water and ...