
I was taught tons of things in nail school, some helpful and others, well, no-so-helpful. But there's one trick that always impresses people when they try it at home, and it just so happens to be the easiest to do—and doesn't require a drop of nail polish. That trick is nail buffing using files of various grits to get an impressive shine.
Because it doesn't require polish, it's great if you don't like wearing any, don't for religious or cultural reasons or are taking a break from nail enhancements.