Old Navy has the largest selection of girls one piece swimsuits that I have seen in one place ever. They are cute too. I like the board shorts and rash guards, tops, and everything is on sale for $10 per piece. The $10 price is for all kids and the adults start at $12.50 per piece. I'm not sure when it ends so get in there.

They have a stamp card which will give you a 40% discount on a single item which you can use May 24-31, 2009. There are five items to get stamped; shorts, tee, swimsuit, flip-flops, and a summer accessory.