Many will tell you to take a cab home if you're too drunk to drive, but that can be expensive -- wouldn't it be more effective to hail a ridesharing car instead? Uber and Breathometer, a mobile breathalyzer company, think so -- they're teaming up to promote Uber as a safe option for getting home when you're sloshed. To start, Breathometer's app will give you a free Uber ride (up to $20) if it's your first time. If you're an experienced Uber passenger, you can still get a free lift if you're one of the first 100 people to order a ride through Breathometer's software. And if you don't get a gratis trip, you'll still get a 10 percent discount on a Breathometer device if you buy it before March 7th. This isn't the largest offer, but it could make a difference if you'd otherwise be tempted to take the wheel after a boozy party.

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