Kmart offers the Rubbermaid 40-Piece TakeAlongs Food Storage Set for $10. (Target has it for about the same price with free in-store pickup, as does Amazon with a $25 purchase and free Prime shipping.) Opt for in-store pickup to avoid the $6.25 shipping fee. That's tied with our April mention and the lowest price we could find by a buck. This dishwasher-, freezer-, and microwave-safe set features ridged lids for more stable stacking.