Wow. Do people really need an app to calculate a 15% tip? Even if you can't do the math in your head, your phone has a calculator built in!
Oct 31, 2012 · 10:37 AM UTC
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@hal_pomeranz 15%? 15%? Oh jeebus. one character off. I've always given 15$. Wondered why I got all those odd looks tipping at McDonalds.
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