Car sharing is about to happen

For several years I have been working towards becoming a non-driver of cars, so that I may have a lower environmental impact. A few months ago, I thought I was ready to get rid of my car, but new demands on my time made it too hard again.

Now I have an agreement to share a friend's car. We have agreed on the terms and will try it out in a matter of days. I will use her car and pay her a sum per kilometre to cover her costs. I have bought a logbook to record my usage. If it goes well I will sell my car.

This is not so much a saving for the environment as for my bank account, because most of the cost of driving for me is paying the state for vehicle registration. However, It will give me a strong disincentive to make unnecessary journeys, because our homes are seven kilometres apart.

I tried this arrangement before with someone who lived within walking distance, but we never put it into action once. I was then offering my car to her, because she did not own one. I know it is hard to make these sorts of arrangement work, so I am interested to see how it turns out.