Aside from points and free nights gained via credit cards and promotions, another simple way to get cheap and free hotel rooms is by taking advantage of Best Rate Guarantees. If you book a hotel via a chain website and find a lower rate somewhere else, you can typically get a discount on the rate you already booked, and in a few cases get a night for free.
The terms and conditions can vary widely across programs, so I’ve created this chart to help point out the nuances of each program.
Links to Online Claim Forms:
Fairmont (cannot file online: must call 1-800-257-7544)
Kimpton (cannot file online: must call 1-800-KIMPTON)
I’d love to hear your best rate guarantee stories in the comments!