Examine doors and replace weather-stripping as needed.
Examine window caulking and reseal where needed.
Examine and repair vents where needed.
Clean chimneys and flues.
Remove items near heat vents.
Place nonskid runners or doormats outside to help keep water, sand, and salt out of the house.
Cut back tree branches and shrubs that hide signs or block light.
Examine outdoor handrails and tighten if needed.
Turn off electrical breakers for outdoor equipment.
Close hose bibs.
Clean out gutters and downspouts.
Clear yard drains.
Spray outdoor locks and hinges with lubricant.
Stake driveway and walkway edges that may be difficult to find under deep snow.
Assemble, stockpile or refresh winter supplies:
Candles and matches
Ice melt and deicer