Beyond Costco's Kirkland K-cups, it makes a wide selection ... Another standout is the pre-ground 100% Colombian coffee — a bulk buy that members say is flavorful and energizing.

If you're a Costco member, you already know that Kirkland Signature products are a must-buy for their high quality and value.

Costco doesn't label its aisles, but it does indicate a brand behind the product when that information is known to add value. For example, Kirkland Signature House Blend Coffee carries the ...