If the famous Olsen twins aren't busy with their fashion lines, they're busy with their personal lived, just ask newly wed Mary Kate. At 30 years old, Mary-Kate is a fashion designer by day, and mother to two step children and a wife. "I have to go home and cook dinner", Mary-Kate says tells The Edit in regards to the challenge to balance work and life. "I run on the weekend. You find the thing that helps you relax and if you don't have it, you have to look for it. Or you get burned out and then you're not productive." Married since November of 2015 to a French banker, Mary-Kate still runs a fashion empire where she can really express style and creativity. "We just want to help women feel however they want to feel. Every once in a while, we want to change our perfume or our haircut; we want to wear heels or flats. We just like to switch it up. That's the beauty of clothes."