50 Best Things To Buy At Costco

One of Costco’s top products is olive oil. Kirkland Signature Organic Extra Virgin Olive Oil is one of the few imported oils that actually meets international and U.S. standards.

Other brands are often diluted with cheaper oils and have problems with quality and flavor. The price is also good, with a three-liter bottle costing $17.99. That ends up being about $5.67 per quart of oil. Costco offers a whole line of Kirkland Signature items.