I can't stand buying clothes for the same reason. I end up going to Walmart most of the time. I buy plain t-shirts and graphic tees for somewhere in the range of $3-$8 depending on the item. If I want dressier clothes, I shop at Marshalls, they usually have some nice stuff for dirt cheap (good quality too.)
Kohl's is a good spot. They usually have a good clearance rack going too. Being a college student, I love Steve and Barry's (Everything in the store was under $10, no lie) but for some reason they closed down the one closest to me.