Check window and door weather stripping for damage.
Disconnect water hoses and turn off outdoor water supply lines and irrigation system.
Wrap exterior water pipes or hose bibs with heating tape.
Clean your gutters.
Check your roof for damage or leaks.
Fill cracks in your driveway and foundation.
Check attic insulation for pest damage.
Check your chimney for obstructions and make sure your damper is working.
Clean and store your lawnmower.
Aerate and fertilize your lawn.
Change the air filters in your HVAC system.
Change smoke detector batteries.
Clean and store outdoor furniture.
Have landscaping pruned and put fresh mulch down.
Bring potted plants inside.
Change your ceiling fan direction.
Clean humidifiers before using.
Check the condition of your pool cover.
Get your house painted (cooler months are the time to do it since there is less humidity).
Have roof or screen enclosure repairs done (services aren’t as busy as spring and summer).