What's the next best thing to having a genie in a bottle? A butler. Butlers have a long list of regular duties, but the best ones go above and beyond those to organize extraordinary experiences. Case in point: We returned to our Silversea ship from a chilly shore excursion one night to find that our butler had a hot bubble bath waiting, complete with flameless candles ringing the tub. Here, a variety of ways that cruise ship butlers surprise and delight guests.