I usually work out 5-6 days a week and wear only moisture wicking clothes. The shirts actually absorb sweat better than cotton so they pick up the smell faster. I tend to wear bras and shirts only once and shorts twice. I have purchased several bras and shirts so I only have to do laundry once a week for work out clothes. I also buy them as rewards for keeping up with my workouts since they are expensive. I can tell you, though, once you switch to the wicking, you may never return to cotton.