Succeeding in business is tough. You have to create a product that people want and then hope that they want it more than they want your competitors’ products. Superior workmanship, innovation, advertising and customer service might accomplish that, but if you want a special advantage, it sure helps to have a few friends in high places. In this week's syndicated column, I write again about Serious Materials, a "green" window manufacturer that got serious attention from Vice President Biden: Biden laid it on pretty thick for Serious Materials: "This is a story of how a new economy predicated on innovation...