Cornell grad student Barrett Keene is walking from Miami to San Francisco to raise money for orphans in Haiti and Uganda

I'm all for multitasking, so if I can do something good for others while squeezing in a workout, I'm game. That's why I'm really feeling Barrett Keene right now. The 31-year-old triathlete, and Cornell University grad student, is currently traveling from Miami to San Francisco to raise awareness and money for the 145 million orphans around the globe. Oh, and he's making the 3,475 miles on foot.

Keene's little stroll is part of the 350,000 mile challenge. The campaign, started by (the social-networking site for fitness enthusiasts), aims to help The Global Orphan Project, Inc. and GO Threads provide school uniforms for orphans in Uganda and Haiti-who are required by law to wear proper attire-and jobs for locals who will make the garb.

For every mile Keene walks (he started in January, has already passed the 800-mile mark, and will likely complete his journey in October), the website will donate a dollar to the project. You don't have to be a triathlete-or even an avid walker-to help too: Sign up for free at and commit to logging every mile you jog, swim, or cycle. Each step you take while watching a Real Housewives marathon (oh, don't act like I'm the only one who uses the gym to catch up on her trashy TV) can help clothe a kid in need.

-Holly Coley, SHAPE fitness intern