I usually wait to fill up until wed. nites at around 11:30 at night (after softball) since i can get gas around 79 cents a litre lately -- as opposed to 89-91 cents the next day. Since my tank is around 60 litres, i can save myself 5-7 dollars a fill.

I'm still waiting on all this corn-and-soy-derivative biodeisel that the kids are talking about these days to become mainstream -- then we can all start making our own gas!

Or even better, gas from cow flatuance *methane* -- http://www.ascribe.org/cgi-bin/behol...=2005&public=1
although im not sure i'd want my car smelling like the back end of a cow every time i drove around