The summer before fourth grade, my cousins and I created a lemonade stand. We squeezed lemons, baked cookies and even made friendship bracelets. At two dollars per cup, business was booming. Our stand ruled the neighborhood. That is, until the kids next door opened their own lemonade stand. We had cheap prices and a mascot — my 4-year-old sister wearing a cardboard sign — but they took it one step further: their lemonade was free. And then those manipulative, 10-year-old geniuses did something unforgivable: they put out a tip jar. When naive adults walked past their stand, they were consumed […]