Bathing suit shopping is a hassle no matter what size you are, and finding a perfect fit online is typically even harder, but I was thoroughly pleased with Pacsun's choices. First off, they have an accurate size chart that tells you which to order based on your measurements and how to determine those measurements. Right now, they are running a sale on swimsuit separates that is "buy one get one free," and each piece ranges from about $12.99 to $19.99. So, say you find a top and bottom that you like, each priced at $19.99 and are buy one get one's, you just scored a bathing suit for $20! I got 3 tops, 2 bottoms, and 2 pairs of board shorts for about 70 bucks -- which averages out to 10 bucks each of course (plus, I got $25 worth of in-store or online credit. Word!)
Not only do they have cute summer clothes on sale, but they also have sweaters and jackets for half the original price. Also, some of their summer tops can be layered for fall ensembles. Quick tip: Forever 21 is almost always running a deal on free shipping if you spend a certain amount, so try some collaborative shopping with your friends to meet the minimum amount and be eligible for free shipping.
If you haven't checked out Asos, you're missing out on eclectic and glamorous clothing that you can't find in many stores. They have a wide variety of items on sale (not just summer items!) and a customizable search engine that let's you choose your price range, color, size, brand, material, etc. Plus, there's a flat rate of $6 on shipping to the U.S. I am falling in love with this site more and more every time I visit it and can't wait to make my first purchase.
Next summer, when prices go back up, you be glad you took the time to do a little out-of-season bargain hunting. Know of any good end-of-summer sales? Post 'em here.