I thought I would throw this one in there because I had a client call up today and this fit her situation exactly. She mentioned that she had a new job and was now taking the train to work. I asked if she had notified her auto insurance company as your premiums are based partly on your driving habits. Since the mileage she was going to be putting on her car is now decreased the chances of her getting into an accident decrease as well – which means they should be charging her less. It might only save you a few bucks per month, but over time it ALL adds up! :)