Costco's vacation packages are definitely worth a try, because the store's website makes it easy to make all your travel arrangements from start to finish, per Market Watch . Not unlike the rest of the store, Costco offers good value for money on packages, which can include airport transfers, deluxe accommodations, and perks, such as luxury meals and tour credits. All packages start off with a basic travel plan, and once you plug in your dates and your destinations, you're able to tweak your arrangements. A seven-day package for two from San Francisco to London and Paris, for instance, might cost $4,900, but would also include a champagne afternoon-tea service, and an appointment with the hotel concierge, as well as premium room offers. 

What's more, Costco Travel has user-friendly deals on car rentals, according to Clark. The company works with popular brands, like Avis and Enterprise, and the travel service is able to waive the additional driver fee. Similar partnership agreements with large cruise companies including Disney Cruise Line, Cunard, and Royal Caribbean International allow the travel site to offer good deals on last-minute cruises.