On Walmart.com where you can now buy this
Rubbermaid Press & Lock 42-Piece Food Storage Set for just $18.99 (regularly $39.99)!

This highly-rated set includes five 0.5-cup containers, four 1.25-cup containers, four 2-cup containers, three 3-cup containers, three 5-cup containers, two 7-cup containers. Each container also has a corresponding Easy Find Lid, which are flexible and snap together so it’s easy to nest containers. Plus, they’re dishwasher and microwave safe!