Stila Cosmetics is one of those brands you stumble upon at Sephora and become instantly devoted to. They also make your favorite eyeliner by a very wide margin. So, if you’re a Stila loyalist, or if you’ve been wanting to try them out, use the code THANKYOU20 on their site and grab 20% off sitewide, plus a free mini Glitter & Glow in the shade Kitten Karma.