Walmart offers the Pyrex 8-Piece 1-Cup Round Food Storage Set, model no. 1085655, for $9.97. Choose Site-to-Store pickup to avoid the $4.97 shipping charge. (Amazon charges the same for Prime members.) That's tied with our mention from two weeks ago as the lowest total price we could find by $7. The set includes four 1-cup glass containers with BPA-free lids.