For the past three years we have had a clean up day with my kids and neighborhood kids. It didn't fall on Earth Day but this year I got my act together to make it coincide...and sunshine helped too!
It has been pretty simple:
1. holler for all of the kids
2. hand out grocery sized bags to kids
3. tell kids what a great job they are doing
4. pick up trash with kids
5. give popsicles to kids
6. remind kids where popsicle wrappers go so we don't have to get right back out there for clean up again so soon.