Thou shalt covet waterproof eye pencils.
The most long-lasting eyeliner option: a waterproof pencil, like Chanel Stylo Yeux Waterproof Long-Lasting Eyeliner ($30, Chanel.com
). Even on the inner rim of the lower lashes, these pencils deliver pigment that won't slip away. "Waterproof pencils used to be chalky and difficult to apply, but now they're just as easy to use as regular formulas," Goodwin says.