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Communications of the ACM

ACM Opinion

How Technology Is Making ­S Tip More Than Ever

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Tip jar

Technology is challenging the tip jarand customers wallets.

Credit: Eric Heath/Flickr

By now, you've probably experienced it: After grabbing a cup of espresso, buying some ice cream or taking a cab, you swipe your credit card and prepare to sign—but you're thrown a curve ball.

From The Washington Post
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