Just a few more tips :)

Those who have furnace, check to make sure the filters are clean. Some may need their motor to be oiled.

Wear layer of cloths like us during the Chinooks. Keep moving as this will help you to keep warm if you are waiting somewhere outside for a ride :)

Keep your vents uncovered ... your furnitures should not cover your vents. :wink:

Some Furnace are electronics so it would be wise to have a service people to come in and make sure it is in working order. :) It happen to me last January, an element went on me and spend the night without any heat. :P