The very best part of Thanksgiving is the day after, leftover turkey sandwich. We like ours on good white bread slathered with mayonnaise, a little turkey gelée, and cranberry sauce, a leaf or two of crisp lettuce, and a pile of thinly sliced breast meat seasoned with lots of salt and pepper. A cold glass of milk is our beverage of choice, although there may be a splash of  last night’s champagne left in a bottle (with a small silver spoon hanging in its neck to preserve its precious bubbles) on the door of the refrigerator—better stick with milk.