It was 13 years ago today that Aaron Samuels asked Cady Heron what day it was. Ever since, October 3 has become the unofficial holiday for Mean Girls fans everywhere — with people celebrating with memes, fetch puns, and tributes to iconic quotes from the film via Twitter. Another way to show your appreciation, though, would be to use this moment to prep for your Halloween reveal.
The Plastics were the zeitgeist group of peak 2000s beauty. Besides the Burn Book, the group of frenemies left behind some of the most memorable looks of the decade: glossy lips, kohl liner that covers the circumference of the entire eye, and overplucked eyebrows. (If you disagree, you'll have the upcoming Broadway show to prove you wrong.) With that in mind, why not use the Mean Girls cast as inspiration for your costume?