Watsed beat me to a response. Have to comment on this. We were on a river cruise and every evening we sat at a particular table with 3 other couples. We only met on the ship, but liked the company, so we stayed as a group for dinner. One of the guys wore the same gray sweatsuit, and it got so ripe by the 4th day, the rest of us made excuses to leave the dining room early. By the 6th day, we kept holding seats hoping they wouldn't come to the table and expect to be seated. He was really riipe. His wife seemed to change clothes regularly, but him--uh, uh. On the 7th day, he changed into another sweat suit and wore that till the end of the cruise, another 7 days. Whew, is all we could say. That is packing light.
Thanks, but we'll just bring 5 pairs of pants and 7 shirts for a trip, whether it's 13 days or 30 days, shampoo works well for clothes--if it gets grease out of hair, it ought to get perspiration out of clothes- and it does.