Batteries – Buy
Anyone that has gadgets at home that are battery operated knows just how expensive batteries are. Other than saving by buying in bulk, you can save even more money by buying the Costco brand because they’re actually made by Duracell.
Milk – Buy
If you have a large family and you can go through a one-gallon bottle of Kirkland milk before it goes bad then it’s a great bargain. Did you know that you can freeze milk as well? So you’re winning either way.