Replying to Winter car camping!

I search- barred, I couldnt find anything I wanted, even though I know the threads exist. So.... Lets talk about sleeping in the car in the winter!

I actually lived in a Subaru with my boyfriend for a month+ up at Baker a couple winters ago. It fucking sucked, but it was fuckin' awesome too... a really simple lifestyle. I'm trying to gather tips and tricks from other people to make it more comfortable, organized, and easy. It's also going to be just me a lot of the time, too... so I dont have to worry about 2 sets of gear and stuff.

Whats your setup? Heater? How do you food? What about wet gear? What rating of sleeping bag? Air mattress? Give me all the infos.