Today's refrigerators have become so large that keeping them well stocked can mean that you're dooming much of your food to be wasted. Unfortunately, most of us tend to do just that. We don't seem to like the sight of anything approaching an empty fridge.
One idea is to keep a picture-- like on my book, "American Wasteland"--in the back of the fridge. If you can't see that picture, you'll know you're keeping too much food on hand. Should that happen, take a cue from supermarkets--put the newer groceries in back, pushing older items to the fore.