Rubbermaid 42-Piece Easy Find Lid Food Storage Set – Link 
Amazon has this food storage set at just $17.99!
- Lids snap together and to container bases so you can always find the right lid, item is 42 pieces which is 21 boxes and 21 lids.
- Graduated sized containers nest for compact storage
- One lid fits multiple bases
- Super-Clarified base to easily see contents
- Microwave, Freezer and Dishwasher Safe
- Lids snap to the bottoms of the container bases and to each other, so you can always find the right lid. One lid fits multiple bases.
- Different sizes to meet all of your normal food storage needs. Containers nest for compact storage. Square shapes take less refrigerator space.