Stay at Hotels for Free

There's a way to cheapen your travel expenses, starting with your hotel bill. Some travel sites (I'm looking at you, Expedia) offer a price guarantee, where if you find the exact hotel room on another website for less, they will refund you the difference and give you money (usually $50) toward a future hotel booking. Find a room on a different site that's cheaper than Expedia, book the same room on Expedia, get the refund, and cancel both hotel reservations. You can do this up to three times each month, and use the vouchers for future -- totally free -- hotel stays.