mostly tees?
First go to a place like dealnews and slickdeals and search for coupon codes. It will suck that right after you buy something at full price you find out you could've used a code for 50% off and free shipping. It happened to me one time. I ended up cancelling my order and reordering later. Places like Forever21 and Hot Topic not only have items on clearance but sometimes coupon codes on the clearance. http://funadvice.com/r/3kuahguog0 I just did a search for you and found you 50% off sale items at Pac Sun and then if you used coupon code em11wel10 you get 15% off that sale.
margueratd.ecrater.com !! she is putting videos on youtube also so she can help you with your fashion ideas. She will have much more stuff coming up, but cheap prices! Also, before putting your order you can send them an email regarding your items you want to buy :) I just love ittt :D
Target, walmart, forever21, rue 21, daisymaze, jcpennys, sears, macys, dillards, also, you can check more expensive sites in the clearance sections and find awesome deals. Hot topic usually has over 20 pages of clearance items, i buy band tees on there for less than $5 all the time.
You can try amazon or the 15 and under clothing site. Also walmart, target, kmart, and ect.
boohoo.com and even asos.com and go onto their sales section
Styles, PacSun, Alloy.com..