36 years ago today — December 1, 1989 — National Lampoon’s Christmas Vacation hit theaters, and Christmas hasn’t been the same since. Chevy Chase gave us the ultimate over-the-top holiday dad energy, Randy Quaid delivered one of the funniest (and most chaotic) cousin performances ever, and the entire cast helped create a movie that somehow makes the stress, the madness, and the magic of the holidays feel relatable every single year. From the Griswold light show that could blind the neighborhood