I just fill my car with gas and park it for the winter [or in the case of my winter Reatta, for the summer]. I don't fire it up, but I do disconnect the battery.
When filling the gas tank, I also add a stabilizer. I run it for 5 minutes or so to get the stabilizer up to the injectors. Then I do not run the car until Spring. I too put on a battery trickle charger.
Thanks Ronnie! And the weather cooperated. It was about 15 degrees, light wind and cloudy but no snow. Used a halogen bulb [in a fixture] to keep my hands somewhat warm as well as supplying light, and laid on cardboard in my driveway [no snow]. The house blocked what little wind there was.
Warmer then pulling parts at Gibson's!