The Kooba Patent Lexi Bag is the bag of all bags for partying. It can be worn messenger style, and you’d be surprised how chic that can look with a frothy little dress and black patent pumps. It’s small, but not too small by evening bag standards, the black patent leather can be wiped clean in the event a drink is spilled. The Lexi retails for $148 (gotta love that) and is available at eluxury.com.