Okay, our refrigerator has different kinds of food that appears and disappears with no clue as to how long it’s been in there. I try to stick to a 3 day maybe rule on leftovers,....anybody have an easy way or an idea in which things can be arranged, marked, dated?

No markers, tape, or new containers...something simple and easy that all the parts (bigs and littles) can follow? Maybe?

Color coded dots maybe? One for each day like blue for Monday, red for Tuesday....

Ideas? Suggestions?