Matte nail polish is Fall's biggest nail trend, so chances are, you'll want to get your hands on a matte polish - or at least a top coat. If you don't have one on standby, there's an easy way to make your own at home. That's right: go to the kitchen, grab the cornstarch, and get ready to DIY. If you don't bake and there's no cornstarch to be found, don't fret. Eye shadow is a great option as well. Just mix it with your favorite top coat, and get ready to show off your shine-free nails.