Kickstart your workout with a quick three-minute warm-up: 25 jumping jacks, 20 body weight squats, 10 push ups and finish with 25 more jumping jacks. Do one exercise right after another.
A favorite of Myers, "these are the most effective exercise when time and space are limited." The high-intensity move combines strength training, endurance building and fat burning in one relatively simple move.
Want bigger, more toned arms? Forget the bicep curls and focus on the tricep (which is actually the bigger arm muscle). These dips, using the edge of a chair, bathtub or bed, are your ticket to tricep stimulation.
Decline Push Ups
When you don't have dumbbells, Steve Kamb of Nerd Fitness suggests placing your legs up on a chair or the bed to add a bit more weight to work your arms, chest and back.
A great way to build the quadriceps, and because of the core strength needed to stay upright, it requires more total-body athleticism than the standard squat.