Oh the horrible things we'd do for a piece of Proenza or Valli. Thankfully, we can keep it civil via Rent the Runway; they let you rent what you want without hassle or potential jail time. The site's an online community where shoppers can rent designer dresses ranging in price from $50-$200. After signing up for an invite you can browse through everything from Doo.Ri to Brian Reyes, Malandrino to Matthew Williamson which means that even though you're determined to make it through the holidays without buying a new dress, you don't have to wear the one you wore last year. They'll deliver same-day in New York City and next-day everywhere else and if that's not easy enough, they'll even send you two sizes on your first rental, so you don't have to worry if your temporary Tuleh will be just right. There goes the only-wear-once problem. UPDATE: Click here to become a member.