Married for longer than the combined ages of the Olsen twins, Newman and Woodward, (who met in 1952 while performing in the Broadway play Picnic) are the envy of their peers. So what's the secret? Newman, 82, says monogamy is as easy as knowing on which side his bread is buttered. "I have steak at home. Why should I go out for hamburger?" he once famously told Playboy.