50 Best Things To Buy At Costco

Another item that people like to buy in bulk is peanut butter, and Costco’s Kirkland Signature Organic Peanut Butter is a bargain. You can purchase two twenty-eight-ounce jars of Kirkland peanut butter for ten dollars, which is eighteen cents per ounce.

To buy one sixteen-ounce jar of peanut butter at Walmart is $4.49, or thirty-one cents per ounce. Peanut butter has a long shelf life, so it’s never a bad thing to buy it in bulk.