She won't see me on the trail she's on. What an amateur.
Anybody that does serious backpacking starts regretting any excess-weight they decided to lug with them after a few hours... I don't care if it's a pack of gum.
Secondly, the whole point is to not stay clean, basically. You don't leave camp. You don't leave the trail. That's ridiculous. Splash some water on your underarms in the morning or evening, use motel-size soap, and you're good to go.