How do you get and stay rich in the United States? That’s the question Bill Danko answers in his book, “The Millionaire Next Door: The Surprising Secrets of America’s Wealthy.” But Danko’s road to becoming a New York Times bestselling author wasn’t paved with diamonds and caviar. He shares how he turned his passion for consumer behavior into finding out what makes a millionaire with Flip Your Script host Kristi Piehl.