Clean sump pump & check drainage speed. Have sump pump serviced by a professional.
Replace or clean furnace filter. Have HVAC system professionally serviced.
Winterize your lawn mower by draining fuel, cleaning filters & scraping off caked on grass & dirt.
Clean debris from gutters & ensure down spouts are clear.
Test smoke/carbon monoxide detectors.
Check attic, basement & closets for ghosts. Consider having ghosts busted by professionals.
Time to winterize! Make sure to clean your gutters to prevent ice dams & keep moisture away from the base of your home. Remember - nothing is spookier than foundation damage.
Cover your air conditioning unit or swamp cooler. 
