Americans love their soda, and grocery stores try to lure them in by offering frequent sales on at least one brand. The week we shopped, Pepsi drinkers were the lucky winners. Pepsi at the Chicago-area Sam's Club was 24 cents a can; at Jewel-Osco (a SuperValu-owned supermarket) 20 cents a can, and 21 cents per can at Target (with a "buy three 12-packs and get one free" in-store promotion).
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