Assuming you will not be driving it for a long time, I suggest that you drive it to wherever it will be stored, then:
Drain the gas tank, and run the engine until it runs out of gas. This will remove as much gas as possible. Drain the oil, and the w/w fluid.
Remove battery from the car entirely, and place it somewhere else. Recharge the battery when you need to use it.
Close all fluid openings, and seal the intake and exhaust with heavy-duty tape to prevent insect/rodent/whatever damage. Place mothballs in interior and in trunks (and perhaps in engine compartment as well) to inhibit rodents and insects. Roll up windows, lock doors, close trunks.
Place car on jack-stands (or equivalent) to get the weight off the tires.
All this doesn't take too long. Of course, if you can possibly take the car for a one-hour drive every 3 or 4 months, then you can leave a little gas in it, because you'll be putting some fresh gas in it each time you take it for a drive.
That's all I can think of.. We'll miss you!
