This screen image released by Smarter Travel Media shows an image from the Tingo website. Tingo is one of a growing number of services that aim to save travelers money on their hotel stays. The site, which is owned by TripAdvisor, says that travelers have a 20-percent chance of getting at least some money back. The typical rebate is $50, according to the company, but occasionally travelers like Eisen get much more back. (AP Photo/Smarter Travel Media)
Read the article: New technologies help travelers lower hotel prices
