Just Dr. Bronners to wash my hands, maybe my feet if they get really dirty and could lead to blisters. If there is a lake or river, and it is not too cold, I may go for a swim. My wife hates it, and says the truck stinks after I return from the trailhead. But I can't smell anything :)
So, Craig you have nothing too worry about... other than Starbucks may not let us in to get that victory Frappachino at the end of the hike.