Smartphone Hotel Check-In

In this Oct. 14, 2014 photo, a mobile check-in option is offered for travelers at the main check-in counter at the Marriott Marquis Times Square hotel in New York. Marriott International launched the ability to check in through its app at 330 North American hotels last year. By the end of this year, the program will be live at all 4,000 hotels worldwide. (AP Photo/Kathy Willens)