Get into push-up position with your hands shoulder width-apart and your back flat. However, instead of having your hands flat on the ground, place your hands on the step. By putting your push-ups on an incline, you will work different muscle groups. The lower the step, the harder it is. Need to make it easier? Put your hands on a higher step. Do 30 seconds of push-ups, taking a quick break in between, then do another 30 seconds.

Stand to the left of a staircase with your left foot on the bottom step and your right foot on the ground. From here, lower into a squat position until your right thigh is parallel to the floor. Now for the fun part: Explode upward, jumping so that both of your feet leave the ground. When you land, lower back into a squat. (If the jump is too difficult, start with the squats only, and build your way up by adding in a jump every few squats.) Repeat for 30 seconds, then switch legs. Do 3 sets total.

4. Step Burpees

Stand facing the stairs, then put your hands on the bottom step, kick your feet back into plank position, and do a push-up. Jump your feet back toward your hands and stand up. Jump up onto the step. If you are working with a set of stairs, try jumping up to the second stair if you can. Jump back down to the floor and repeat. Move as quickly as you can, keeping your body in a straight, tight line during the plank and jumping as high as you can onto the step. Repeat for 30 seconds and do 3 sets total.

5. Toe Taps