I was between every day and every 2 to 3 days. I usually always wear fresh underwear, even if I don't shower a lot, but bras, shirts, and especially jeans are reworn a couple to a few days depending on how much I sweat, if I sweat. I usually also wear the same pajamas 2 or 3 days in a row. Actually, I have always worn the same pajamas at least two days in a row, again, unless I sweat in them.