I'm not saying you don't like your gifts. I would never say that. But, hey, maybe that sweater doesn't quite fit. Maybe plaid leg warmers aren't exactly your style anymore. Maybe your sister bought you another friggin' salad spinner, seriously, like it's not an unsubtle hint to diet, could you even be more passive-aggressive if you TRIED.
I don't know your life. But here are the return policies at many major retailers in the U.S.: