Is the Costco Travel service worth it? Here's how the warehouse retailer's vacation service compares to traditional booking ...

Beyond bulk groceries, a Costco membership unlocks surprising perks that can save you serious money on everyday life.

Paying to shop at a store might not sound ideal — but Costco is an exception. The members-only warehouse club offers a variety of discounts so deep, you probably won’t bat an eye at the fee to join.