Since time is of the essence for me, I don’t have the luxury of devoting 30-45 minutes to weight training 3-4 time a week. So I take 20 minutes and pack it full! Upper body, lower body and core all get combined into this compact time slot, and I usually get one of these workouts in every 4-5 days. Fitness magazine often has some great 20 minute circuit training routines. These workouts involve no rest between sets, so while you are toning, you are also incorporating cardio to help burn some extra calories. This particular express workout from Fitness magazine involves quick video clips on how to perform each exercise. Search through their list and find some of the sessions that suit your goals, and then set aside 20 minutes, 2-3 times a week, to achieve those goals.