Stretch leather leggings plus a boxy blazer equal an uber-cool alternative to a suit.

A classic blazer flattering almost every figure and is a wardrobe essential for day and night; add a fresh twist with a velvet version.

Chic and slimming, striped trousers are a fresh alternative to denim. Both Kate Moss and Heidi Klum punched up simple separates with cropped pairs by Isabel Marant.

Animal Prints go with everything this season!

Pop! Bold pants are an instant update to basic black separates. Fuchsia suede pants were a standout at Pucci, while a cobalt pair turned heads at Thakoon.

Dots got, well, dotty for fall in playful combinations of color and scale. Colorblocking gives a fitted sheath Mad Men flavor, while strategically placed circles are made for a sexy surprise.

Talk about versatile! This borrowed-from-the-boys piece works day or night. The style was part of an evening suit at Yves Saint Laurent.