10 shopping mistakes that cost you money at warehouse stores

Being a member of Costco, Sam’s Club or BJ’s might seem like a steal when you find great deals, but there’s a chance you’re wasting more money than you’re saving.

Sure, deals abound at warehouse stores. However, if you’re not approaching your shopping trips smartly, you could be throwing money away, regardless of which warehouse store you go to.

Click ahead for 10 ways you might be overspending at these membership clubs — likely without even realizing it.