Not only can I layer the pencil and liquid ends of this Tarte Tarteist Double Take Eyeliner- Travel Size ($12) for intense definition, I could just use the precise waterproof tip or smudge out the gel-pencil side solo without needing to buy two separate things. Image Source: sephora.com Tarte Tarteist Double Take Eyeliner- Travel Size $12 from sephora.com Buy Now