One of the best places to find a variety of plus size dresses is online. Online retailers specialize in plus size formal dresses, bridesmaid dresses, and Mother of Bride accessories such as bridesmaid jewelry sets, belts, and purses. If you don't find what you're looking for at your favorite brick and mortar retailer, don't be afraid to look on the web for other options. Shopping online gives you the ability to comparison shop so you can see the difference between similar items. It's also easier to compare prices so you can get the best deal possible.