"Money, it's a gas," wrote Pink Floyd's Roger Waters for their hit 'Money'. Author, speaker, and social innovator Vicki Robin would probably agree: she posits that most people don't understand the true, human, working value of money. Because when she breaks it down like she does here in this video, you might be tempted to reevaluate your own spending habits. Vicki's latest book is Your Money or Your Life: 9 Steps to Transforming Your Relationship with Money and Achieving Financial Independence.