One set of clothes. Wash underarms and crotch of my body, shirt, underwear with soap and sponge. I carry a small lidded Ziploc bowl for carrying water AWAY FROM THE WATERSOURCE and wear them dry. It’s amazingly not such a big issue when actually out walking. I certainly don’t want to be carrying laundry! Let this be easy! Seems like a big hurdle at first until the hiking lifestyle feeling kicks in. For me, that’s in about 14 days. After a couple of resupplies and I get to go back out, I feel integrated in trail habits. Laundry and clothes lose their fastidious importance for me!