I'm glad it's not just me that does that.

Maybe I should add that scurrilous fact about you to your Wikipedia entry.

What, writes down the details of their petrol buying?

I wish I'd started it earlier. When I changed cars I had a strong intuitive feeling that the new car was drinking a lot more fuel, but since I hadn't kept reliable records for the old one I was unable to tell this for sure. So I started keeping reliable records for the new one anyway, in the hope that at least next time I wouldn't have the same regret...

I am going to be logging all the fuel I add and all the miles I drive in Kate's car, although this is mostly to be sure that we divvy up the running costs reasonably fairly.