We've heard about car sharing in theory on today's show, but let's put that idea into practice. Gail Pat lives in the heart of Boston and she just doesn't need a car everyday. She heard about car sharing, and it sure seemed to fit her lifestyle -- and sure seemed to fit her budget as well. So she called a company called Zipcar. Gail took the leap and found that the system works very well for her. "Within 3 blocks of my office, or my condo, I have 4 cars that I can choose from," says Gail.