MNN - Mother Nature Network

<div><img width="160" vspace="5" hspace="5" height="160" border="1" align="left" alt="" src="/sites/default/files/user-75/poll_driving.jpg" /></div> <div>In cities like San Francisco, Boston and London, people are &quot;renting&quot;&nbsp;out their cars for profit. The basic idea is simple: make your car &mdash; which is probably sitting around <a href="http://www.mnn.com/green-tech/transportation/blogs/how-to-rent-your-car-for-fun-and-profit">90 percent of the time</a>&nbsp;anyway &mdash;&nbsp;work for you by allowing customers to share it via a cellphone app. For consumers, personal car-sharing means a) finding a cheap alternative to car ownership; and b) making money from your most expensive asset. It's been reported that the average person can make $250 a month renting out their car.</div> <div>&nbsp;</div>