Keep one of those brush/scraper things in your car.

Clean the snow off your car before driving.

CLEAN THE SNOW OFF YOUR CAR BEFORE DRIVING

All of it

If it is going to be a lot of snow, don’t wait until it is over before you start digging out.

Salt/pet friendly ice melt for your walkways

Have a snow blower? Don’t wait until the day before to see if it still runs. Make sure you have gas for it

Slow drip on a faucet to prevent pipes from bursting