Walmart offers the Pyrex 10-Piece Food Storage Container Set with Multi-colored Lids for $15.28. Opt for in-store pickup to avoid the $4.97 shipping charge. That's $8 under our mention from this past winter and the lowest price we've seen. (Aside from the mention below, it's a current low by $8.) The set includes a 4-cup round dish, 3-cup rectangle dish, 6-cup rectangle dish, two 2-cup round dishes, and BPA-free plastic lids.

A close price: Target sells this set for $15.49 with in-store pickup.