there was a guy (not sure on this site or another) that had a camera mounted to his dash. oh by the way, he had a prius. he mounted a screen to his trunk and had it displaying his mileage. camera was pointed at the on board computer and displayed on the back.
that was pretty cool but it probably took money and lots of it. I am not saving gas to save the planet but more to pad my back pocket. well more give me more money for my family. that is a better way to say it.
the white board idea, though I didn't like it at first seems to be the most readily accessible and cheapest. I couldn't find the static cling lettering so I went with the white board. here is a link to the pic.
http://www.gassavers.org/garage_imag...v5ahgsdg9f.jpg
I also added the EPA rating for my car for comparison if anyone cared. hopefully this will cause several conversations from passers by which is kind of my goal. get more people interested in doing this and maybe change the mentality a little.