10. Keep emergency supplies in the car
A blanket, gloves, a first aid kit, and a spare cellphone battery are your bare minimums here, but you should also have a battery jumper, and, depending on how much snow you’re likely to face, a shovel and kitty litter, to help get you out of any unusually deep snow banks.
11. Blast the undercarriage with water
As often as you can, use a strong jet of water to blast out all the road grime you’re collecting from the slush. If there’s salt in there, or worse yet, magnesium chloride, it will corrode any exposed steel. You want to get it out of there ASAP to avoid serious damage.