The proper way to store your ride for winter

I use sta-bil in everything except my daily drivers.
Lawnmowers, weed eaters, generators, 4-wheeles etc, the stuff just works.

A tip on the tires, a friend of mine works at a tire shop and he told me park my camper tires on some 2 x 12's instead of directly on the driveway, to help prevent tire rot.

Buy a battery tender and just leave it plugged in.
Battery tender JR is available about anywhere and is less than $40.
You can buy extra connectors for like $5 at Summit, I rotate my battery tender about once a week on my classic cars.