Unless it's freakishly cold, I doff and rinse my hiking shirt and undershorts at the end of the day, changing into my "sleeping" shirt and boxers. I like wearing clean clothing in my bag, which helps keep it from becoming a biohazard. In the Sierra the hiking clothes usually dry overnight, so I can wear them the next day. If it's raining my clean clothes routine begins to break down.

I don't carry spare pants like I once did, so I suppose I've cut back there, and everything is weighed before I pack it. Those ounces add up.

Cheers,