If you don’t have a serger/overlocker then bias binding is a great way to finish a garment neatly. I got tired of wrestling with facings that never seem to sit right and then with the poor quality interfacing that seems to be the only kind available to home seamsters. I use it for summer dress necklines and armholes and I love using a contrasting colour because it looks so cute. Check out this tutorial on making and applying bias binding