In 1989 a business feature called David Stern "the guy who invented the smile button---and then forgot to copyright it." In 1967 he created an ad campaign featuring a happy face. Neither he, nor his client, trademarked the icon. After 30 years in advertising, Stern ran for mayor of Seattle, then moved to Scottsdale, AZ to write books. "I've written a dozen and hope to get them published before I die," he says. "Having lived in 18 houses in 64 years, you can take my advice on house buying to the bank."