In an interview, Robert Metcalfe said going from zero to million dollars a month in sales revenue was his life's accomplishment. He said, "I used a yellow graph paper often used by engineers. At the beginning of every month, I would put the sales total goal of the month at the top and I would draw a straight line. Each day new order would come in and I would put a new dot toward the goal. As long as we were above this line, I was happy and when our team fell below that line, I was sad. W...