I'm at Costco so often that I feel ... I usually pay $10 for a 22-ounce bag — about half the price of what I've seen for similar granola in regular grocery stores. If I want even more crunch ...

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

Discover the 7 grocery items Costco shoppers swear by for unbeatable savings, from rotisserie chicken to vanilla extract.