Not ready to face the gym yet? Exercising in your living room is easier, quicker and free from colleagues or friends who you'd rather not bump into with a red, sweaty face.
Here's five workouts online that will be over in 10 minutes. Hurrah!
The Cameron Diaz workout
The Victoria's Secret workout
The 10-minute core workout
The five-minute arms workout
The six-minute upper thigh workout