Let's be honest: A small bathroom is one of the most challenging areas to decorate. Costco just started selling the Tresanti Charlie Rotating Vanity—and it's one of the smartest small space hacks we've ever seen. Check, check, and check. As practical as this vanity seems, it's really hard to find viral Costco products stocked at your nearest location. That way, you can revamp your small space without leaving the couch.