We thought we'd give you a really easy one. If your foil isn't too gunky, wipe it off with a damp cloth, fold it up, and put it away for the next use. If it's beyond saving, give it a quick wipe and put it our with the recycling. According to the Aluminum Association , Americans throw out enough foil every three months to rebuild our entire commercial air fleet! You read more about this tip on our blog.