Want the best home gym with the smallest possible footprint? You may want to consider the Mirror Interactive Home Gym. When not in use, it takes up the same amount of space as a regular wall mirror, but activate the LCD screen and you gain access to professional trailers teaching everything from cardio to strength training to yoga and more. The high-tech responsive system consists of an LCD panel, stereo speakers, a camera, a microphone and a one-way mirror that allows you to see yourself, your instructor, and your classmates during real-time sessions. In addition to live classes, there’s an extensive library of on-demand workouts. Get one for $1,500 plus a $39 a month subscription — cheaper than the nearest gym in the long run; Mirror.co.