After giving birth to daughter Alice in 2005, the 42-year-old 30 Rock star agonized over having a second child before it was too late. "What's so great about work anyway? Work won't visit you when you're old. Work won't drive you to get a mammogram and take you out after for soup." Well, Fey didn't ponder it for long. Not only did she welcome 2½-year-old daughter Penelope (here with mom on the set of Admission last July), but she's also figured out a great work-family balance.