Fill bathtub with water, as well as any large, clean containers you can get your hands on. Grocery stores carry large water containers and sell clean water that goes in them, if any are left better grab them.
Quilts to cover fridge and floor freezer, should you have any such thing (we used to have a floor freezer and loved it).
Much, MUCH more water than you'll ever think you will use, no telling how long you'll be without it.
Kids' favorite quilts, toys, any special meds they might need if you are forced to leave your home?
Do you know where your dog leashes are? And a cat carrier? Their toys?
Any meds that have to be kept cool? Try foam coolers and keep them half full of ice.
Batteries for a battery powered radio (Yup, they still make them.)
Cell phones charged EVERY NIGHT and EVERY TIME YOU ARE NOT USING THEM. Never know when they will save a life.
Fresh and dried fruits and foods you can eat without cooking.
Do remember that millions of people in the world have lived without electricity, cell phones, instant contact by computer, etc, and have lived to brag about it.
That said, I don't think I'd like to live the same way I did like that as a child, but do enjoy knowing that I COULD, if forced to. I do remember how, not that I want to.