"Equipment I can easily store at home and take to the gym when need be is a win-win for me. Plus, it's an extra win if the equipment is affordable. I use these SPRI Core Sliders ($10) on both carpet and hardwood flooring (they have a side for each), and they're great for lunges and core work. For example, here's a total-body slider workout you can do anywhere. Note: these won't be back in stock until April 14, but you can pre-order them now." — SB