Costco offers deals on bulk groceries, home essentials and more. But exactly how much can you save? I did the math.

I shop at Costco every week for my household of two and spend under $100 each trip. Here's my usual shopping list and ...

I shop at Costco once or twice a week and try to spend ... the price of what I've seen for similar granola in regular grocery stores. If I want even more crunch in my yogurt, I add some Kirkland ...

Being a Costco member rewards shoppers with cashback deals, member-only prices and discounts on travel, vehicles and health insurance. There are two tiers to personal Costco memberships: gold star and ...