1. Join an intramural team
Exhibit your competitive nature in one of the best ways possible—sports! Whether you sign up to play softball with a group of friends or dodgeball with your coworkers, playing on a team throughout a season will help keep your motivation and heart rate high. Check out your city's recreation center for league details. If they don't have the sport you're looking for, start your own teams with friends, family or colleagues.
2. Purchase a trial offer
If you're like me (someone who gets bored easily), do yourself a favor and sample all the fitness programs in your area before even thinking about committing to a membership. Daily deal sites like Groupon and Living Social offer trial memberships that allow you to try out a fitness program without any contracts or initiation fees. In the past, I've purchased Bikram yoga and kickboxing lessons and loved the freedom of knowing I wasn't stuck going to the same studio for the next six months.
3. Go to your local community center
Many community centers have fitness equipment for locals to use for a small fee. You can pay by the day or month depending on your motivation. They also have classes you can sign up for ahead of time if you want more instruction and variety. Most centers offer both indoor and outdoor group fitness activities like hiking, tennis and Tai Chi. Not only will you keep your body active, but you'll get to know your neighbors, too!