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Alcohoot

The sobering truth: drunk driving, especially among young people, is a deadly epidemic: in the U.S., every single day, close to 30 people die in car crashes that involve an alcohol-impaired driver. Alcohoot, the company behind a breathalyzer device that wirelessly connects to a smartphone and mobile app, aims to decrease these numbers by making it easy for drivers to test their blood alcohol level before getting behind the wheel. Cost: $90 (app download is free)

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