Get into the habit of cleaning out your refrigerator on a weekly basis. The best time to do this is the day before your garbage day. This small change will prevent a cluttered refrigerator and keep you from over-buying items you already have but cannot see. This is also a good time to add to your grocery list.
Containers that are clear allow you to easily see the items that are being stored. Stackable containers are great space savers especially in small refrigerators. One good rule of thumb when deciding what to discard is “if in double throw it out.”