Diane von Furstenburg purple blazer

Add This:
A bright jacket (Diane von Furstenberg, $298) is like a booster shot for work clothes.
Poetic License booties

And This:
Cute plaid shoe booties (Poetic Licence, $99) are topped off with a feminine bow.
Theory black dress

To the Tried-and-True:
A black dress (Theory, $285) is the perfect backdrop for color.

To Get:
A kicked up office look.
Worthington skirt

Add This:
A lace-print skirt (Worthington by JCPenney, $44) has dress-up potential.
Ann Taylor necklaces

And This:
Pile on mixed-media and glass-pearl necklaces (Ann Taylor, $85 and $65, respectively) after 5 p.m.
Brooks Brothers white shirt

To the Tried-and-True:
A white shirt (Brooks Brothers, $90) grounds any outfit.
After work outfit

To Get:
An office-to-evening look.
MINT Jodi Arnold top

Add this:
A beaded cotton jersey top (MINT Jodi Arnold, $385) is easy and festive.
Kate Spade sparkly heels

And These:
Sparkly shoes (Kate Spade New York, $395), in a gold-silver mix, are staples in a season of shine.
Old Navy jeans

To the Tried-and-True:
Bootcut jeans (Old Navy, $30) automatically make all that glitter feel more laid-back.
Date night outfit

To Get:
An great date-night outfit. 
Liz Claiborne stadium jacket

Add This:
A stadium coat (Liz Claiborne New York, $269) updates traditional plaid with a glowing palette.
Coach bag

And This:
A zippy bag (Coach, $498) packs plenty of color. (Get the cheaper version)
Tommy Hilfiger khakis

To the Tried-and-True:
Classic khakis (Tommy Hilfiger, $98) are indispensable for the stylish soccer mom.
Weekend outfit

To Get:
Relaxed weekend chic.
More from O's Fall Fashion Handbook