This Little Piece of Plastic Is the Key to Getting a Flawless Cat Eye

While it may appear to be a one-trick pony kind of product at first glance, the Liner Designer can be used with your other makeup if you're not into feline flicks. You can use it as a shadow guard as you layer on coat after coat of mascara, or you can even use it with lip liner to get ultrasharp edges on your Kylie Jenner-esque lip creations.

We especially love that it comes with its own carrying case to keep it from getting dirty at the bottom of your beauty bag. You can also add a suction cup to the compact, perfect for sticking it on your vanity's mirror so it's always ready to go. After all, when you're running late in the morning, every second counts.