After the NA blackout of 03 my wife asked me what do we do esp if this happens in the dead of winter? So I learned.
Water, can't live without it, figure out where your going to get it
Freezing to death, get a good sleeping bag and setup a tent inside your house
Food, stock up on stuff you NORMALLY eat, not MRE's and wheat with a grinder
Firearms, if you think you need them, sure
Generators, another piece of equipment to maintain, I opted for an Inverter for my car cause having electricity even for an hr a day would be huge
Cooking, most easily done with propane and propane stores forever
Bug out bags, OK if you think you'll be relocated like the coast, but I'd bug in instead
Setting up backwoods retreat, once the starving masses from the cities come you won't have the ability to stave of a 24/7/365 seige.
Most other things like medical, communications, and on and on, we depend on society for, so going it alone isn't an option if it gets bad. Strong communities you can depend on will be what makes it bearable