Today is Oct. 3, otherwise known as Mean Girls Day — as if we needed a day dedicated to one of the best movies of our lifetime (slight exaggeration). But seriously, the hilarious film has some poignant lessons on growing up female and being true to yourself, thanks in large part to writer Tina Fey. To celebrate the timelessness of Mean Girls, we're sharing our favorite lessons on womanhood inspired by the film. The quotable 2004 movie features quite a few gems about friendship, safe sex, and dating your cousin, so take a look for a good laugh!
— Additional reporting by Tara Block