Sometimes in life, you really can't beat the old stuff. Old friends, old tunes, old movies - we love them all. And when it comes to working out, it seems we're partial to going retro too: indoor step ...

Led by "Bachelorette" alumni, Tanner Courtad, and founder of Future Self, this class offers a walking-based workout that's bound to help you clock in tons of steps while getting the heart rate up.