Turning your clothes inside out before washing/ drying/ even ironing can make them wear less, last longer. It cleans the inside of clothing better where it is usually needed more (sweat/bacteria), and ironing inside out leaves any press marks inside the clothes where they can't be seen. Also, running the dryer on a short "air dry" cycle will cool the clothes off after a heat cycle, so they don't wrinkle as much and don't need ironing.