[recycled sixtie]

Don't forget to carry a few containers of gas line antifreeze. Gas in Canada is supposed to have additives to prevent moisture in gas from freezing but the only time I have broken down is when my gas line froze. Gas line antifreeze is cheap and comes in small containers. Throw in a the contents of a small container in each full gas tank when temps are expected to be cold.

Preferably travel in daylight hours in case you have trouble.
Synthetic oil is better particularly in winter.
A block heater is ideal but not essential.
If you have concerns about car not starting while sitting overnight then run it about every 4 hours for about 15-20 minutes.
Engine should be in good tune.
Battery charger should be handy.
Jumper cables are a must.
Snow tires recommended.
Carry a small small shovel.
Blankets, sleeping bags for emergencies.
Never let the gas guage go below a half. Refuel often.

I am with you. I would rather drive a long trip than go through the airports especially during holiday season.

Cheers, Guy