Since I start planning for Halloween in mid-August, all of my costumes are already pretty set. But, because most people are normal, non-Lydia Deetz wannabes, I realize that now might be the time you're scrambling for a few good ideas. Even if you haven't responded to your first party invitation on Facebook (rude), click through for some genius (if I do say so myself) pop culture costumes to make you feel extremely relevant and clever at every spooky soirée you attend.