Upon arrival, the butler had asked me which night he wanted me to have him lay out an elaborate display of rose petals on our bed, fill the oversized tub, light candles and prepare the room for a romantic interlude, which I took to be a nice touch.
Your hosts can also open doors to hard-to-visit wineries, custom-stock your already well-stuffed (and free) minibar, book a chef to prepare dinner in your room, or--in my case--badger a rental car company into swapping out a lemon and delivering the replacement.