I celebrated both my kids' birthdays, launched a new TV show, and moved—all in one week. Their birthdays are only a day apart, and we were still in boxes, so I couldn't find anything. But since my son was turning 1, all he needed was one of the empty boxes to be happy, so it worked out well!"
SARAH MICHELLE GELLAR
The Crazy Ones
Single Moms' Savior
WHEN SHE GOT pregnant as a college senior, Kayla Walker-Heltzel, now 29, quickly learned how tough it was to raise a child as a single mom. That's why, in 2009, she founded the nonprofit MAMA Knows, Inc., in her hometown of Ardmore, OK: "I had support, and it was still hard; I wanted to help other young and single moms prep for the…