If you are looking for a good deal on peanut butter then check out Amazon which has Peter Pan Creamy Peanut Butter, 40-Ounce Jars (Pack of 3) for $15.27 when you sign up for Subscribe and Save. That is $5.09 per jar or $0.13 per ounce. Normal price in store runs about $2.50-$3 for a 16 ounce jar. As always Amazon prices change in an instance so be sure to check out this deal soon!
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