One way to help being prepared for a time without electricity or water is having camping gear at hand. Not everyone is going to have this, but I promise the campers are going to do better overall than the non campers....just because they have the extra gear. I'm not trying to convince anyone that they need to become campers, but you could help yourself out a little by having some of those handy camping tools. Its worth considering on a small scale.
I have a friend in the area that is a non-camper. She is now in a situation where her husband wants to take the kids camping....and she's not real enthusiastic about it. At one point I told her I would give her a list of what we have in our gear to help her out. So Anna -- this post is just for you! We don't actually have alot of camping gear as our family camping is very few and far between -- most of our camping revolves around our kids and Scouts.
You will notice that I do not have a camp stove at this time. That will be rectified before the end of the month as I got myself in a Scout situation where I will be camping without the Big Boss and her super stuff. Oy. We just got rid of the other two stoves we had...both Goodwill finds that used Coleman fuel. We are upgrading to a safer fuel source stove.
Next you need your stuff for doing dishes. We have two plastic tubs and a plastic drainboard. We carry a small bottle of dish washing liquid, wash clothes, sponges/scrubbies and dish towels. Scouts actually use three tubs....soap, rinse, sterilize (cap full of bleach - in a much bigger tub - a capfull would be too much in this size). Since I am washing most of the dishes I don't bother with the bleach step on family trips....plus I have a reaction to bleach so I can't get my hands in it...even diluted. In an emergency situation it would be a very good idea to have that third tub to sterilize. Last thing you need is to come down sick at that time. Same if you have children doing their own dishes.
I keep a plastic container full of silverware, knives, can opener, tongs, etc. Do not forget fireproof, long handled cooking utensils for use over a camp fire. Also remember your hot pads for removing things from the stove...and a pair of heat resistant gloves for removing things from the fire. Welding gloves do well. We also have a hard sided egg carrier as we always take eggs on family trips, and a camp coffee pot to keep hot water in. We also have a set of marshmellow/hot dog sticks for roasting over the fire.
This is my pile of fans. And no, their most important purpose is not to cool me off. Its to blow on my face and keep the bugs off of me while I sleep. The sound of a mosquito buzzing in my ear while I'm trying to sleep drives me nuts -- in a very bad way! The canister in the middle not only runs the grey fan, it will also charge phones, etc.
Lastly I have lots of misc stuff. Rain gear....don't leave home without it! Line/rope to string to hang things....like the washcloth and dish towels if nothing else. It is also a good visual barrier on one side of your camp site if you don't want people walking through. I don't know what the heck people are thinking when you are camping and they all run through your site. Beyond bad form.
We also carry a small hatchet for firewood that needs to be shortened and a camp shovel in case you need to bury anything (think no bathroom) or to clean out the fire pit that someone left in a disgraceful way.
Handheld walkie talkies, multipurpose tool and survival whistles (with compass and slot to carry matches).
We also have lanterns, a tent, sleeping bags, sheets (so you can lay on the sleeping bag and not in it when its hot) and a blow up mattress and its pump.
So Anna, I hope this helps. And before you go buy anything, go to MWR and see what the have available for check out/rent. They should have the expensive stuff for sure.
Good luck on your first family camping trip!