In 2009, Geoff Trenholme decided to make a life change. After numerous years of working in the corporate world and teaching high school mathematics, he enrolled in the Artisanal Breads and Pastries program at the San Francisco Baking Institute. This week marks the soft opening of Geoff's newest venture, the Rocket Baby Bakery, located at 6822 W. North Ave. This labor of love pulls together Geoff's love for bread with his desire to start his own business.