But the prize for the most virtuosic deployment of the work uniform today goes to Christine Lagarde, the French lawyer who runs the International Monetary Fund. Her tailored dark (black or charcoal) suits are accessorized with a great haircut, dangling pearl earrings, and an Hermès scarf. That’s it. She’s nearly 60 and succeeds in looking both female and powerful without seeming to overthink either. Never has so little looked like so much.