Looking good is all about having options. Sometimes you want the clothes that cost a lot of money, but sometimes you just want some cheap tees to lounge around or go to class in. When you're not doing anything important, you don't want to put your best dress clothes on and risk ruining them. Just stock up on several cheap tees and you'll have what you need to rest in, to sleep in, to clean house in, or to do errands in. You don't need to pay a lot of money for T-shirts. You can easily buy several cheap tees online for just a few dollars.