Mats made from plastic bags for the homeless. The bags keep homeless individuals off the ground and warmer, and keep any blankets or clothing they have with them dry. It is a really great service project for children's groups, families, and schools :)
How to make a basket out of plastic bags. This is actually a really creative idea. I have so many plastic bags that I keep from the grocery store, and this is a really interesting and smart way to use them.