This 1860s Sag Harbor cottage is light and bright, after a renovation by graphic designer Nora Sheehan and her partner Al Ellenberg. They knocked down a wall to open the space up and painted both floors and ceilings white. Sheehan is not a fan of forced decoration. "Your home should make you happy and it should allow you to have fun. But more than that, it should be personal," she says. Atop the mantel is a photograph of The Beatles taken by Harry Benson.