The sea of scribbles on this season's social calendar—company dinner, preschool fund-raiser, tree and menorah lightings—can leave any mom strapped for sanity and style. So our gift to you is a dress-up plan that takes the pressure off: All you need is a few versatile, glam separates. Unlike twice-a-year frocks, these pieces can be mixed and matched into looks for countless special occasions. And for not-so-special occasions—scrambled with everyday staples like jeans and black turtlenecks, they'll create fresh looks long after the ball has dropped.

Chiffon ruffle-front blouse, $495, D&G, Neiman Marcus. Organza ballet skirt, $188, Leon Max, MaxStudio.com. Lullaby shoes, $90, Steve Madden, (800) 747-6233 for stores.