The Céline designer explains that she's "disciplined" about her workday. "We're just organised. Everybody in this building knows when I arrive and when I leave and the important things are done within those hours. That's just the way it is. And it works." Having children actually helps her manage her time, she says: "It's much easier having children, because that creates a natural limit. If I have a good time with them before they go to sleep, it's worth everything to me." [Independent UK]