In another thread that is not directly related an interesting product caught my attention. While searching the word hygroscopic a travel urinal of sorts showed up (Google can be interesting). On the product page there are videos that explain it well. This looks to be a great replacement to the "wide mouth" jar. Truckers, campers, private pilots, and long distance travelers (with kids especially) might consider it. Disposable and spill resistant. His and hers versions.
http://www.traveljohn.com/Gil
