For every hour you work out starting now, author, former businessman, and triathlete Eric Harr will donate $5 to CARE (up to $50,000 total).

Report your workout hours at care.org/feedback/workout.asp (it's the honor system — you wouldn't lie to a charity, would you?), and money goes to CARE's global projects to help eradicate poverty through education, improved access to clean water, and more.

Doesn't cost you anything but a little sweat.

What Do You Think?