What’s the most important thing to look for when considering hotels? Price? Location? Amenities? Maybe a balance of all three? Well, here’s a tip: You’re leaving money on the table and missing out on all the best possible deals if you’re not booking through hotel loyalty programs. We’re talking about getting upgrades to more expensive rooms, access to special lounges, complimentary Wi-Fi, even free stays. But even if you are loyal to one brand, have you ever crunched the numbers to see if your favorite hotel program actually does make the most sense for you?