CBS NEWS: How Your Second Job Can Make You Better At Your First with Sari Crevin

"Sari Crevin is a human resources manager with the Xbox division of Microsoft by day, and runs BooginHead, a marketer of baby accessories, by night. People often assume that the two jobs compete for her attention, time and creativity. The opposite is true: her entrepreneurial skills make her a better HR manager, she says, and what she learns at Microsoft has strengthened her general management skills. Here's how she pulls it off, and what you can learn from her balancing act."