Cash. If the power’s out at the pharmacy or grocery store the backup light may not power the credit card machine and/or the store’s larger system may be down or need time to reboot. A couple hundred socked away in a drawer should suffice.
If you have a detached garage remember to bring a shovel into the house before the snow storm.
Put together a list of your elderly or infirm neighbors and their phone numbers. Do a good deed and make sure they’re okay.
Make a list of larger neighborhood resources. Who has a winch to pull your car out of the ditch? Who could use some of your enormous wood pile to heat their house in an emergency? Whose 16 year old would love to earn $30 helping you clear the fallen tree?
A flashlight where you can find it in absolute darkness. It’s no good in the back of your closet or in a box in the basement.
Check your fire extinguisher to make sure it’s still properly charged. Most of us install one when we move into our new house then forget about it for the next 20 years.
If a storm knocks out the power you can cut off the water coming into your home then drink the uncontaminated water in your water heater until it runs out.
Snow = water. It’s amazing how many people forget that.
Snow = refrigeration. If a winter snow knocks out your power don’t fret about those steaks defrosting in your dead freezer. Just put them In a big Tupperware storage container and put it on your front porch or back deck.
Paremlat is a good idea but remember that it doesn’t last forever. The shelf life for an unopened container is 6 months.
Water can be store pretty much indefinitely but if it’s in plastic after a while it will start to absorb the taste of the plastic. Better to replace it every 6 months or so.
If a big storm is coming and you have satellite or cable TV record a few good movies in advance. Even if the power’s still on the storm may interfere with your signal-but you’ll still be able to watch the pre-recorded stuff.
If you get more snow than usual for your area make sure none of your vents are covered by snow. Blocked vents can lead to carbon monoxide poisoning.
Take a short video of your home in its “before” condition for the insurance company in case you ever had a disaster. Take closer shots of any especially valuable items such as fine art.
Put all your family information such as insurance, passport, bank account and license numbers on an account like Dropbox so that if you ever lost your records they could be reassembled from other location. This is also really useful when traveling abroad.
I have a small emergency box with a plastic tarp, a roll of duct tape, a hand cranked radio/flashlight and a few other essentials. We’ve never had to use it in a real emergency but we have used and replaced things in it a couple of times.