Some people put up Christmas lights as soon as the Thanksgiving table has been cleared, and then there’s Clark Griswold and Martha May Whovier, and then there’s Rolf’s. This German bar and restaurant in Gramercy is decked out in colorful lights, wreaths, ornaments, and dolls year-round. With heavy dishes like wiener schnitzel and meatloaf, and drinks like mulled wine and spiced eggnog, it’s a good place to go whenever you miss winter.