If you have an iphone or any other smartphone here are my favorite apps for getting my sweat on in a pinch. And best of all, most of them are free!
Nike Training Club
This app is the ultimate FREE fitness app. It has soooo many different routines, moves, and levels and you can do almost all of them at home if you have some of the equipment(medicine ball, kettle bell, resistance band, etc...)
You can also watch short videos of real people doing each move so that you know exactly how to do it right.
And there are celebrity athlete routines you can download for free as well!
Pocket Yoga
This app is $4.99 but so worth it! It has a great variety of practices and intensities and the lengths run from 30-60 minutes. There's an animated figure that shows you all the moves and if you want you can add your own music to the background. My Fitness Pal
This isn't particularly a workout app but it is awesome for tracking your calories taken in and burned. It has a very large data base for counting calories of any food. And if you ever wandered how many calories you just burned cleaning the house...you can look that up too. Oh and it's free :)