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
Not just leaked but altered too? Sheesh