Our pick: Zara Pencil Skirt With Asymmetric Frill ($80)
Why it's a holiday staple: The pencil skirt is your ladylike offset to cocktail dresses and embellished trousers. Plus, you can wear this particular staple straight to the office and then straight to the holiday party. We chose a slightly funkier asymmetrical-hem cut so that it's a more flattering length for a variety of heights. The point is we want this to be the skirt you wear all season long, and it should cater to (read: accentuate) your legs.