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Chef Grant Achatz places one of many courses on a server's tray in the Alinea restaurant kitchen in Chicago in 2008. In 2012, the restaurant got rid of reservations and started selling tickets. Earlier this summer, the company announced how effective it's been. Charles Rex Arbogast/AP hide caption

itoggle caption Charles Rex Arbogast/AP

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Peter Mason tries the Oculus virtual reality headset at the Game Developers Conference in San Francisco earlier this year. Some see Facebook's acquisition of the company as a turning point. Jeff Chiu/AP hide caption

itoggle caption Jeff Chiu/AP

Figuring out how much to tip, and when, is a delicate science. Some businesses are integrating technology into how you pay to encourage you to tip more. Dan Bobkoff/NPR hide caption

itoggle caption Dan Bobkoff/NPR

Mercedes' S500 Intelligent Drive is one traditional carmaker's approach to driverless cars. Johannes Eisele/AFP/Getty Images hide caption

itoggle caption Johannes Eisele/AFP/Getty Images