I went hiking in the High Atlas Mountains in Morocco in the most primitive of conditions.  (We ran out of water and had to use a water filter I brought with me.)  While I didn't mind "scuzzing" it my father insisted I should bring a set of these wipes as he uses them when he is in the wilderness on primitive hunting trips.  SAVED MY LIFE!  Due to severe exhaustion (24 hours of flight coupled with no sleep due to severe windstorm) I developed travler's stomach sickness in the middle of nowhere with no access to sanitary facilities, (if you don't count rocks.)  Without going into the gory details, I was a mess.  I whipped these out of my daypack and cleaned up beautifully.  While I was greatly embarrased, I did not smell of the "fits."  These towletts were the only form of "sanitiation" I had.  I did not get further illness, which was a great concern to me.  I used these wipes every evening to clean the ever-present dirt of me.  They were always dark brown with the dirt they removed.  At the end of the trip, I was at least pretty sanitary considering the conditions.  (Emphasis on no washing water or sanitary facilities.)  I could not thank my dad enough for suggesting these.  While most of us won't be going on these kinds of trips, I will always keep a couple of packs on me from now on just in case.