How do you organize a big project? See how these kids plan to clean up a park.

Cleanlots has been described as "America's Simplest Business" and "almost as simple as a walk in the park." Entrepreneur magazine said parking lot litter cleanu

While cleaning up their playground, a class of preschoolers finds enough useful junk to create a robot.

Do you have an idea to make your world a better place? Then make your ideas known by writing letters to people who can help. How?

America’s public parks are in a golden age. Hundreds of millions of dollars—both public and private—fund urban jewels like Manhattan’s Central Park. Kee