Americans are tossing away the equivalent of $2,275 a year for a family of four. A total $165 billion annually in leftovers gets trashed by homeowners, grocers and restaurants, according to the Natural Resources Defense Council. Much of the waste is fueled by food companies and grocery chains that oversell and overstock. Also to blame are consumers who are tempted by deals on items with short shelf life. The NRDC found that trimming waste in the U.S. food supply by only 15% would save enough edible goods to feed 25 million Americans annually. How much food does your family waste?