One of the tricks of bargain hunting is understanding you may not get the exact item you have decided you want. This doesn't mean you can't find something equally satisfying, it just means you may not have the selection of items you might otherwise have if you were shopping at the mall.
For instance, when you shop on websites like Overstock.com you're buying items that are left over from being sold in other stores or websites. This means that if you are a smaller or larger size, you may have better shopping luck because there is a more obscure selection. If you're shopping for home decor, bargain electronics or other items, sizing won't matter, but brand names may be your sticking point. By being flexible, you can get better bargains hands down.