I bought a remnant of carpet and put that under the car, plastic would do the same.
The jump points are L/S behind the front left tire, negative is to a ground stud underneath the positive which is clearly marked.
Skip the interior mothballs, put some under the car if rodents are an issue. Some say to lower the windows a fraction to allow some circulation and aboid the musty odor come spring.
I cycle my battey around once a week for a day and keep it topped up that way. Fire her up once a month and let it fully warm up, until the fan comes on personally. The rocking back and forth doesn't do much in my opinion as far as warming up fluids in the rear end, etc. Rowing thru the gearbox couldn't hurt.
Any other tidbits I'd like to hear from the snowed in crowd, this blows........