Put some Sta-bil in the tank (NAPA). Follow the directions.
Drain your oil and change the filter if it's overdue, so you're not fooling around with sludge and varnish. Put fresh oil back in it when you're ready to have it run again. Put a note on the steering wheel so you don't forget! <img src="/forums/images/graemlins/scared.gif" alt="" />

It's up to you whether to put it on blocks or not; if not, make sure the tires stay inflated so you don't bugger up the sidewalls.

Disconnect the battery and clean up the connectors; leave off if you decide to pull and put on a charger later on.

Lock 'er up and remember where ya put the keys! <img src="/forums/images/graemlins/smile.gif" alt="" />
That's it.