Steve d’Adolf, 82, a retiree in San Diego, spends an average of seven hours a day entering sweepstakes, online and by mail. Over the past 45 years, d’Adolf says, he has won a ride on the Goodyear Blimp; trips to four Super Bowls; meet and greets with celebrities like Britney Spears, Carrie Underwood, Mariah Carey, Gloria Estefan and Michael Bublé; and dozens of vacation trips.