I'm an executive member who's exclusively shopped at Costco for 10 years. These are the 10 staples I'll always buy.

Source: Business Insider

I've gone to Costco at least once a week for the past decade, and I always find the best groceries for my family. Allison LauMy family only buys groceries from Costco — we've shopped there once or twice a week for 10 years. We always buy Sara Lee bread, frozen fruit, ice cream bars, and Taylor Farms salad kits.