When booking hotel rooms, French travellers want to know if breakfast is included. Asian travellers are concerned about closet size and US travellers tend not to sweat the small stuff. These insights reveal patterns that property managers can use to their advantage - if you know which amenities potential guests care about, you can use that information to highlight the fact that you offer them. Expedia's Usability Lab has been designed to explore consumers' path to purchase - and to see how online design elements facilitate or hinder the process. Find out more.