http://www.renttherunway.com/rtr_home

Kind of cool idea-for special occasions especially. Instead of buying a high priced designer outfit, rent it for about 10% of the actual cost of the item!!!! They ship you two sizes, you wear the one that fits better and ship them back the next day.

Only drawback for me-they only go up to Size 12!

But they do rent jewelry and accessories too!