I'm trying to separate UL book advice (no more than one of anything - except fire starters) and what I'm reading here. I see repeated references about changing into dry clothes when reaching a shelter or entering your tent at the end of a wet day of hiking, however, I also see warnings on carrying too many clothes. So what's the deal? Should I carry an "always dry" base layer to wear after a wet day or should my dry set of clothes be something more socially appropriate or warmer?