Exercising at home can save a ton of time and money, but you also need to have a workout plan or else "I don't know what to do today" can become "I'm not going to work out today." And while DVDs are one solution, workout video subscription services are even better. They make it a cinch to change up your routine, plus you can stream intense body-sculpting sessions on your phone or tablet to do them wherever the day takes you.

FitFusion is one such subscription service. With a membership ($5.99 a month), you have access to all the videos, which feature 15 trainers, seven fitness categories, and more than 100 videos lasting 30 to 60 minutes. You also get access to the iPhone, iPad, and Android apps for when you're running around or traveling.

Check out a sample of what they have to offer below in this video with trainers Karena and Katrina from Tone It Up! They take you through a total-body, fat-blasting workout that uses 50- to 60-second increments to fire up your metabolism.

Stream more workouts from top trainers in the nation anywhere you go! Click here to get unlimited access to all workouts for only $5.99 a month.