Like Jim, and probably others, we have an RV in the driveway with its own battery always fully charged and 2 (usually) full propane tanks to run the fridge and lights.
In August 2003 there was a power failure covering a huge part of Ontario & some of the northeast USA. Our trailer fridge was already on & cold in anticipation of a camping trip. I transferred all the 'essential' fridge items from the house fridge into the trailer fridge. Since the trailer fridge is a lot smaller I left fruit, vegies and DH's large assortment of pickles, hot peppers... in the house fridge.
I also took every comforter & sleeping bag I could find & wrapped up our 2 big chest freezers in the basement. I didn't even bother to take any food out for supper first! When the power came back on & the freezer motors stopped I opened the lids to find that the bags of ice cubes had not even started to melt so I knew all our food was safe.
Our outside solar lights were pulled out of the garden at night to supplement lighting indoors so we didn't put an additional strain on the battery.
We were able to continue to watch TV in the trailer although we limited viewing to just a couple of hours each evening. Between the BBQ and the stove in the trailer we were able to eat well and not much differently than our ordinary way of life. Our kids were young then & they thought it was a great adventure. We met so many of our new neighbours because everybody was out walking as there was no TV or electronics to keep people inside.
When an ice storm caused a big power failure in Toronto a few Decembers ago I could not believe how many people were complaining that their food in the fridge was going to go bad! It was December & there was lots of snow on the ground and cold temps -why didn't they just put their stuff outside?
Friends filled a tote with snow & stuck it on their deck with milk, eggs & other essentials in it & never had to throw a thing out! Meanwhile their neighbours submitted a claim to their house insurance for spoiled/lost food!
Living in the country & owning an RV, power failures really don't affect our way of life that much.
~Diane