Invest in electric heaters.
If you already had a place picked that's in the north, make sure you settle in as early as a month or two before it's winter season starts.
Do not ever neglect snow tires. If you're tight on money, getting even 2 sets of tires for wintry conditions is better than none. But 4 is still recommended and no, All-Seasons are terrible for winters regardless of brand. They just aren't designed for winter conditions, they're designed mostly for Spring/Summer/Fall.
Buy winter emergency sets for your vehicle. Buy one for the glove compartment, the ones where they actually have emergency power banks in them. Buy another for general use, especially ones equipped with a piece together shovel.
Use HEET only in 30 below temperatures.
I think we need to take our fear away from Terminator and apply it moreso to something like HAL. HAL is more realistic now than a cybernetic Terminator is.