I read with interest that Rosie Winterton, transport minister and MP for Doncaster, recently launched car sharing research with the following piece of PR puff: "Car sharing helps reduce congestion, tackle pollution and carbon emissions and importantly, cut the costs of travelling. While this research shows that informal car sharing is popular, it highlights that formal schemes run by employers are still in a small minority.

"I encourage employers to consider whether introducing a car-sharing scheme for their organisation could help them reduce their carbon footprint and provide quicker, more convenient journeys for staff."

Well, I’m part of a car-sharing scheme; I take my daughter to school most mornings, and I must say it works extremely well. She is now very familiar with David Bowie when he was good (that’s 1971-’74, incidentally), Bad Company and Doctor Feelgood, so these journeys are also proving highly educational.

However, the return leg is just me and the fresh fruit I bought from the grocers. And presumably that’s really bad, according to Rosie. The thing is, car sharing is a bad idea unless you really like the person you are sharing space with. I read with interest that the research reveals that just one per cent of respondents said they were a member of a formal lift-sharing sc heme run by their employer or other organisation. That’s because those schemes do not work.