I bet that's why you have FIVE shovels! 
We're big boot chain fans at our house anytime we go outside; however, if you don't normally use them, might put a pair in the car so when you're stuck you won't wind up on your fanny.
Nope. We have five shovels because I've got five kids. I got tired of the excuse "I don't have a shovel". Shovels are safely out and ready to go.
Good tip on the the boot chain advice. It doesn't take a whole lot of room and I don't enjoy my fanny on the ice and snow.
I also just received the San Bernardino County re: snow and living in the mountains. This is a good time of the year to run to Costco and get massive amounts of pantry items. I get packages of soup noodles, cup noodles, mac and cheese, tuna, canned veggies, soup, pastas, sauces, chili, etc. These will last you through a snow storm if we should be snowed in more than a week. I don't consume these items unless it's an emergency. It usually lasts till spring.
Also, make sure you have plenty of drinking water, medications, diapers, toilet paper and basic necessities just in case.
This IS Southern California, not Minnesota so we are seldom snowbound for weeks. Sometimes days, but if prepared with
alcoholmedicine, firewood, hot chocolate and food, you and your family should be able to survive and maybe enjoy the pleasant company.