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Photo: Marko Metzinger/Studio D

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How to Wear Jeans at Work
My hard-and-fast rules about jeans in the office: Choose a dark wash in a skinny, straight-leg or trouser silhouette. Don't wash them too often—they'll get soft and fade; dry-clean instead to keep them crisp. Pair with office-appropriate accessories. When in doubt, don't wear anything to work that you would on the weekend or that you've seen your daughter in. And remember: With so much great denim to choose from, there is no excuse for mom jeans!

Top it off with...

(Left) This blouse is nicely shaped and not too long to leave untucked. (Anne Klein, $79; Macys.com)

(Right) The longer length gives you more coverage, and the silk trim adds a dressy touch. ($79; PickwickWeller.com)

Blazer, $495; ToryBurch.com. Blouse, Calvin Klein, $69; Macys.com. Jeans, $70; Gap.com. Clutch, $245, ClareVivier.com. Nude heels, $128, AnnTaylor.com.