There is nothing worse than showing up to a big event in a dress you love -- then realizing you're not the only one wearing it. Enter Dressregistry.com, a new Web site that promises to save you from that particular social trauma.

Simply log into the site and find or create the event in question. Then upload the details (and, if you'd like, a picture) of what you're wearing. Voila. You officially have dibs on your dress.

Thing is, this probably works best if you can talk everyone you know who's invited to the same shindig into signing up. Or if you are obnoxious enough to e-mail everyone announcing that you've registered your look and warning them not to cop your style.

But as someone who once wore the same dress to her eighth-grade graduation as the girl in her class who ate crayons, we will certainly give it a try. (It was a really cute dress, ok?)