The Supermodel Guide to Black Eyeliner: 5 Split-Second Makeup Upgrades Made for a Lazy Sunday

Just as the initial thrill of a back-to-school beauty routine is starting to wear off, along comes the Insta set with a fresh reason to sharpen those eye pencils: inky swooshes and jet-black smudges of liner that take fall's earthier palette over to the dark side in seconds. There's hardly better inspiration for louche, morning-after glamour than Caroline de Maigret, who updated her signature rumpled-in-the-breeze waves and café au lait lipstick with a powdery smear of kohl along her lower lash...