I admit, I have an affinity for Nanette Lepore. And I really like this pencil skirt in the pictured "rendezvous tweed." The two front-flap pockets with buttons, the white contrast trim on the pockets and hem, and the seam detail on the front dress up the skirt while still making it professional and work-appropriate. Pair it with a light colored blouse or black sweater or even something of a more vibrant color.
The skirt is made from rayon, cotton, and acrylic -- vegan! It regularly is $295, but it is on sale via Bloomingdale's for 30% off, making it $206.50. Find it here via Bloomingdale's.