If you sew, chances are you have a ton of fabric scraps lying around. You don't want to throw them away, but you can't figure out a use for them. Guess what? A freezer runs more efficiently when it's full. Why not fill it with fabric scraps? This and other tips for how to keep your fabric out of a landfill can be found here: Top 5 Ways Your Fabric Stash Can Save the Earth.
How, if only I could find a way to make use of my scrap aluminum...
Chain Mail Jewelry
Handcrafted aluminum chainmail jewelry