This fun squat variation adds an extra core challenge and targets your glutes.
How to do it: Stand tall with your feet shoulder-width apart. Hold your arms straight out in front of your body at shoulder level. Lower into a squat by pushing your hips back and to the left (imagine you're standing inside a box and point your hips to the back left corner). Reach your arms out and across your body to the right (as if balancing on a surf board). Staying in your squat position, shift your hips and arms to the opposite side. Continue shifting from side to side 10 times in a row, and then press back up to standing.