I'm a big fan of multi-functional exercise habits or routines. Workouts that not only keep you in shape, but serve an additional end - learning how to defend yourself, being outside, etc - are a great way to gain and sustain motivation and stay healthy over longer periods of time.
Boxing is a great example of a multi-functional workout we think everyone should try out. Boxing is not only an incredible fat burner, but is great for cardiovascular health as well. You'll also grow more confident defending yourself! We have a great boxing set to recommend for your home gym - check it out in the video below!