Where can you buy really nice clothes for 12 year old slim girls but for cheap?

this question is perfect cause I'm 12 years old and slim! Well Justice is good but you need coupons to go there for cheap. I go there to get some clothes. They are always having 40% off sales there! Areopostale is good, too. I also like Pac Sun and they can have good prices. Sometimes i go to Marshall's to shop they have a ton of great prices and clothes!