Um...I learned exactly how to deal with that in the military!
. Nature has provided that too, but you have to be VERY careful, or you could have poison ivy or poison oak in that place where the sun don't shine! Seriously though, how do you think the over 4 BILLION (of the total 7.5 billion of the global population) humans living who do not have toilet paper deal with it? In Mexico, only about half the population can even afford toilet paper so they use cloths they make just for that purpose (which have to be rewashed).