It is a personal preference thing. Some people choose to pack a travel-size deodorant or a "deodorant stone" from a natural food store. Most of us don't care since we know we'll be generally stinky all over.

There is some value in doing a quick washdown before bed, not only because it helps you feel better, but it also helps prolong the life of your sleeping bag.

MNS
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YMMV. Viewer discretion is advised.