Egg cartons work well for all kinds of craft projects, especially if you have children or grandchildren. You can also donate your empty cartons to schools and after-school care as children can make critters and other decorative art with them.
According to SimpleMom re-purposing household items such as egg cartons is both economical and eco-friendly. Egg cartons make great paint wells for art projects, work well as seed starters and can be used as kids’ treasure boxes. I’ll bet you can think up some additional good uses for them!