Clueless (1995)

Cher Horowitz's yellow plaid suit Difficulty: easy. You need a yellow and black plaid blazer and a matching pleated mini skirt, a white shirt underneath, white over-the-knee socks and Mary Janes. Thrift stores often have a yellow check blazer; a skirt in any close match is fine. Add a cell phone held permanently to one ear and an eye-roll ready for anyone who gets it wrong. Bring a friend in a black, white and red plaid set as Dionne, which mirrors her matching look in the film.