Buy- Plastic Wrap
When it comes to plastic wraps, brands like Kirkland and Vitawrap are a must-buy at Costco. You’ll be able to keep these boxes for years and its enormous quantity is a plus! Aside from being the cheapest on the market, it also works on almost every surface.
Don’t Buy- Shampoo Or Soap
Just like soda, it’s not worth it to buy shampoo and soap at Costco since they’re almost always on sale at supermarkets. Why pay full price for these products when you can buy them half the price somewhere else? Buying them on sale at any other store is the right thing to do.