Vagabond has become one of my favorite stores. It has alot of labels that I can't find anywhere else and most of them are priced well. It also has about four or five great lines of dresses for special occasions. I found a pretty dress by Glow (a label I've only ever seen before in some Brooklyn boutiques) that I've worn to three different weddings. The girls in the store are really nice and helpful and the new store in the back is really unique and fun. If I want something to wear that I know nobody else will have then I can usually find it there.
Pros: variety, price, good customer service