AmazonBasics 10-Piece Locking Food Storage | $13 | Amazon
If your Tupperware is so stained from years of use, you really need to toss it out. Get yourself a brand new set with the AmazonBasics 10-Piece Locking Food Storage Containers for only $13. Included in the set are two 1.3-cup containers with lids, two 3.2-cup containers with lids, and one 9.6-cup container with a lid. The locking lids provide an air-tight seal, so you won’t have to worry about food leaking in your fridge or lunchbox.