Continuing with the idea that the best-value travel can be absolutely free travel, here's a contest from Southwest Airlines. It's no secret I'm already a fan of their generally low prices and lack of nickel-and-dime add-on fees. So when they run a contest, it's worth sharing.
This one is their "Click and Save" contest to celebrate ten years of "Click and Save" promotions. Here's what you do - you have to subscribe to their "Click and Save" newsletter, a pretty typical process.
Once you're enrolled, you can take advantage of chances to win a trip to Phoenix, Denver, Chicago or Florida airports served by Southwest Airlines. If you win, you and 9 of your lucky friends will enjoy chauffered airport transfers and 5 nights in a deluxe hotel. No purchase or reservation is necessary.