Guilt tipping -- or just plain old tipping -- is adding up.
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We're actually tipping just over $453 a year, according to a new study.
That works out to about $38 a month, according to polling firm Talker Research.
As for guilt tipping, it found more than half of the people in the study say it's a regular occurrence to feel pressured to tip more than they really want to.
Whether it's the wait staff handing you a card machine or that little tablet being swiveled around to you, people feel pressured.
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On top of that the tipping options, what you're being offered seem to be going up. Nearly 50% of people say they noticed the options increased in value in just the last month alone.
About a third of people say they've been asked to tip for a service they normally wouldn't even consider tipping for in the past.