For the pressed-for-time and those who want to fit exercise into everyday life without sacrificing a lot of time in the process the 7-Minute Workout is the perfect solution. It activates all the key muscle groups in the body. It gets your breathing and blood flow going and it changes you neurochemically so that adaptations can take place so you can get fitter. And, it is only seven minutes long.
Extra Credit: 1 minute rest between sets.