Walmart offers two Rubbermaid Easy Find 28-Piece Food Storage Sets (56 pieces total), model no. 1792658, $20. Opt for in-store pickup to dodge the $4.97 shipping fee. That's tied with our mention from two weeks ago as the lowest price we've seen. (It's a current low by $16.) Each set includes eight 1/2-cup containers, four 1-1/4-cup containers, four 2-cup containers, four 3-cup containers, four 5-cup containers, and four 7-cup containers. All containers feature lids that snap to each other and the bases of the containers.