I'd head back to old-school movie musical days and hang out with Fred Astaire and Gene Kelly and the lot. And try to get on screen, of course.

Or, I'd go the Regency era, because I look awesome in an empire waistline, find myself a Mr. Knightly or Mr. Darcy, and spend my evenings doing embroidery and taking turns about the room with my girlfriends and gossiping about the scandalous neighbours.