Question: 5 things you should buy at costco?
Answer: Wine. OK, “Costco Chateauneuf-du-Pape” doesn't exactly roll off the tongue. ... 
Chocolate Truffles. They're real and they're spectacular: Costco sells authentic French chocolate truffles from Chocmod, a high-end French confectionery company. ... 
Eyeglasses. ... 
Laptops. ... 
Extra Virgin Olive Oil.