Starting next Monday, Curbed readers will be able to vote on which Washington, D.C. neighborhood truly was the best this past year. What makes a neighborhood qualify as being second to none? That's not up to us, but for all of you to decide. Nominations will close this Sunday, December 13 at 11:59 p.m. EST, so be sure to submit your nominations before then. To do so, either leave a comment below or email Curbed DC at email@example.com. Be sure to also give any details as to why you believe your chosen neighborhood should win the Curbed Cup competition.