Walmart offers the Rubbermaid Easy Find 28-Piece Food Storage Set for $8.61. Opt for in-store pickup to dodge the $5.99 shipping fee. That's the lowest price we could find by $4, although it was pennies less a week ago. It includes four 1/2-cup containers, two each of 1-1/4-, 2-, 3-, 5-, and 7-cup containers.