It's not always easy to motivate yourself to be active and get in to the gym, especially once it starts to get cold out. It's much easier to stuff your face, get comfortable on the couch, and play video games. But what if you could turn working out into a video game? With Goji Play ($100) you can. With controllers to let you play, wireless sensors to measure your activity, and their iPad app, you can turn your activity on a cardio machine into a number of fun video games. It's the easiest way to make your daily cardio go by in what seems like minutes, while making it a bit easier to get yourself off that couch.