Sam's Club offers its members the Pyrex 20-Piece Glass Storage Set, model no. 1107795, for $14.98 with free shipping. (Non-members pay an additional $1.50.) That's the lowest total price we could find by $3 and the best deal we've seen on this set. It includes 10 oven-, dishwasher-, and microwave-safe glass containers and 10 plastic lids. Deal ends September 18.