Costco:$4.49 for a 40 oz. bag (11.2 cents/oz.) Kroger:$6 for a 16 oz. bag (37.4 cents/oz.) Savings at Costco:70.1% (26.2 cents/oz.) showcake/shutterstock Log Cabin Original Maple Syrup Costco:$7 for two 64 oz. bottles (5.5 cents/oz.) Kroger:$3.79 for a 24 oz. bottle (15...