'80s Icon Molly Ringwald Talks Scrunchies and Mauve Nail Polish

"The first major one is when you first go through puberty, where your body is changing. You have to get used to your grown-up body — that was a big one for me . . . I feel like life is lived in seven-year cycles. When you get to the end of each cycle, you think about what the next seven years of your life are gonna be like. I like to mix it up, whether it's a hair color or a husband. [Laughs.] I'm kidding! We've been together for almost 15 years . . . Turning 40 was really amazing — it kicked me into high gear. It made me realize that whatever I was going to do, I had to make the choice and do it. The first 40 years of your life, you let life happen to you, and then after, it's sort of like, 'No, no, no, I've got to make this happen.'"