Right, thanks guys.
I've only had the car about 6 weeks, but I have a slowly (very slowly) growing collection of gas reciepts in my glovebox waiting to go into a fuel log. I normally do that in my vehicle maintenance log, but I haven't been able to find one at the local parts stores for some reason. I'm just going to buy a little notebook and start using that. Then it'll be much easier for me to just grab it and bring it into my computer to start a log here on the forum.
FWIW, I'm already beating the epa mileage for my car by quite a bit (I can only guess that my normal driving habits are soo conservative that I'm basically hypermiling all the time anyway). As I've gotten used to the car, my MPG has gone from 35 to 37 to 39 in the city, and I've hit 46 on the highway. All with no major modifications (yet
FWIW, I was really hoping to see exactly what other CRX drivers have done... maybe to have some examples to try to emulate. I'll try googling crx aero and see what that yields.