It's all about jeans, ladies. Costumes are not going to impress the boys OR the girls, and I swear if I see a dress of ANY kind I will throw up. Now is the time to pull out that NFL jersey your little brother got you for Christmas. Now is not the time to show off your new pumps from Bloomies. In the last several years, I have seen grotesque amounts of thong underwear, prissy heels, and way too much cleavage at Superbowl parties.
Let's all be realistic this year: it's about the game, the commercials, the (hopefully scandalous) half-time show, and chili. It's not about you.