Step away from the Grease costumes, put down the Joker and Harley Quinn getups, and don't even think about touching those Mario and Luigi outfits. This Halloween, it's your turn to take first prize in the couples costume contest, which means abandoning your go-to ensembles that you and your boo have been wearing for the past five years; it's time to step into something a little more creative that will take your Halloween from "blah" to "YAAAAAAAAS." From Cards Against Humanity to the Whip and the Nae Nae, everyone at your party will be wishing they'd thought of these costumes first!