>>I also use terms like, "Miles per gallon".
>Which gave me the reason to use Excel... one of those things I can't possibly calculate in my head. Because miles-per-gallon is very counter-intuitive for me. Liters per hundred kilometers, now that's something I understand, simply because of years of use. So I'm tracking my car's consumption in both units, just to get used to these weird Anglo-Saxon ways of measurement.

I must say that those metrics are REALLY weird... for someone used to metric measurement, "Miles per gallon" is something unacceptable. :)
I´ve been to the US on last August, and I need to say that those measurements just messed my braing. <bg>