1. Make it a daily habit

Make your workout routine a habit to improve your chances of sticking with it. The key is to have the same time each day for exercise so you don't have to think about whether or not you'll do it. Even if your workout consists of only 10 minutes, those 10 minutes will add up over time.

2. Keep it interesting

If your workouts become a chore, chances are you'll stop doing them. Change up your routine to keep things fresh and challenging (but still doable). For example, rotate between running on flat ground and hills; or swim freestyle one day and breaststroke the next; or replace that fourth treadmill mile with a set of 10 squats. You get the idea!

3. Enlist help

A workout buddy can keep you motivated and accountable, so enlisting their help makes it more likely you'll stick with your workouts. Better yet, find a group fitness class or club to join so you aren't just exercising solo every day at the same time. It's so much more fun to do it together!

4. Make exercise rewarding

Rewards are not just for children—adults need them, too! Treat yourself after each week that you work out by doing something that makes you happy (think: eat healthy foods, buy that dress or CD off your wish list). Then reward yourself again when you've reached your weekly goal (which might be four, five or more workouts).

5. Laugh it off

Laughter is a great way to help you relax and enjoy life—and can even make exercise easier. Laugh along to your favorite sitcom, chat with the funniest person at your gym or watch a funny movie on TV before you work out. You'll feel better as soon as those endorphins start pumping through your body!