Winter is pretty close and i'm putting away my neon. Sadly the 2-car garage is full and it will have to be stored outside.

I got a custom covercraft, all season waterproof cover that fits real snug. Oil was changed very recently and the gas tank is full. Gave her one last run and wash before throwing the cover back on. Question is, what is a good rule of thumb for winter? Do i start it up once a month/week, leave it be but take the battery out, ect? What do you think I should do?.
I want to take the battery out and hook it up to a charger, but my house owners do not want a battery in the house.
Any input is greatly appreciated!