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Mario Arcari

DipJar at Midtown business (credit: CBS 2)

Columbia Grad Launches Electronic Tip Jar For The Credit Card Era

Workers who rely on tip jars to bolster their incomes have noticed a dip in tips because of an increase in the use of plastic for purchases. To combat the problem, new technology called DipJar has popped up in some cafes and shops across the city.

08/29/2012