For the past nine months, you've watched your co-worker battle crazy cravings, swollen ankles, and a growing belly. As her cubemate and close friend, you only feel right throwing her a baby shower before she takes off for maternity leave. But before you start booking private rooms and buying streamers, consider throwing her an in-office celebration. Not only is this the most cost-efficient option, but it also allows everyone at the company to celebrate the mom-to-be. From decor to gift etiquette, here's everything you need to know to throw an awesome, in-office baby shower!