What Jaseca said
I think I'm somewhat typical of lazy college students: I buy clothes according to what is currently restricting my time between laundry runs. I wear shorts and jeans many times between washes, shirts 2 or 3 times, and undies and socks once or twice. I therefore have 4 or 5 pairs of shorts, the same of jeans, about 15 shirts, and 32 pairs of boxers, so I only need to do the laundry every 4 weeks