I just found a new product in the drugstores that might be useful in some situations. Duane Read "I Go" fushable "Toddler Wipes." Also made by companies such as Pampers and Huggies.
Basically, they're a flushable baby wipe, designed to help toddlers learn how to "clean up" after using the toilet. Lots easier than with dry paper.
They come in soft-sided, re-closable refill packages that would easily fit in a BOB or other kit (I'm pretty sure they're designed to be carried around by a parent for use by the toddler when needed). I assume that by being flushable, they'd biodegrade faster than a traditional baby wipe, many of which have a high polyester content.
In the spirit of scientific understanding, I even tried using them myself. It was a very pleasant experience.
YMMV, no conection to the company, yadda yadda yadda.