With so much going on in our busy lives, there seem to be no time to fit in all our activities—and much less time for squeezing in a workout. Doing short focused routines is a great way to fit in some exercise into your tight schedule. Here are a few mini workouts you can try.

Do a quick warm-up. Run in place, do some high knee stretches, butt kicks and jumping jacks. Give each routine about 30 seconds. It does not take much to get your heart pumping. The idea is just to keep you from starting up cold before the actual workout.
If you have access to some equipment, put them to good use. Do some lifting and curls with a set of dumbbells on a bench press. Free weight exercise can also be used for some strength training.
A treadmill can give you a full body workout. Try to run for about 10 minutes and more if time permits. This is great for those who do not have the luxury of running outdoors. You could also run no matter the weather with an indoor setup.

If you have a cardio rowing machine, you can use it for a good lower body workout. Use the rowing machine and repeat as wanted. Be sure to rest for a minute or so between intervals.
A stationary bike can also provide good cardio and upper body exercise. Most modern stationary bikes adjust tension as you pedal harder, so the workout intensity depends on you.
The key is to get back to the basics. If you do not have the equipment on hand, you can always go back to the simple exercises such as stretching, pushups, sit-ups, lunges, and squats can be done. With enough repetitions and the proper movements, they can be effective and provide enough of a workout, even on a busy schedule.