The list author says: "You may need some equipment and supplies to help you survive or to spare you some discomfort during a disaster. The Feds say you should be prepared to go 72 hours on your own. I suggest more like a week. The good news is that if you have done any family tent camping, you have most of what you need already. One thing I have told the scouts is that you should be ready to spend a week in the desert in the winter with your whole family (and pets), and we work from there. You should also have a basic tool kit.
I am not the expert on what you should pack, but check this list: http://www.nhc.noaa.gov/HAW2/english/prepare/supply_kit.shtml or http://www.ready.gov/america/_downloads/checklist.txt"
"You should have at least a gallon per person per day. So, you might consider one per person / pet. And also one extra one. If you want to store water in these, you might need to get some bleach to keep it disinfected. One half teaspoon (at least) per five gallon jug. Just remember, 5 gallons of water weighs about 40 pounds, (plus the container) so they may bend or break a shelf."
"Ok, some food. If you don't feel like assembling your own meals. These may take a little preparation time, just like camping, which sometimes is a good thing. But this is for each person, not a group."
"You should have one of these for when it is dark and you need both hands (which, for me, is most of the time). That way you don't have to try and figure out where to put your flashlight and then worry about it falling over and rolling away..."
"This item is kind of expensive, but it is also very versatile. It can be charged using its built-in hand crank or from anything that provides USB power. It can also be used to charge other devices using its USB port.
The light output is also very versatile - it can be adjusted from nightlight to reading light and pretty much anything in-between."
"You should have a first aid kit. Adventure Medical makes pretty much the best I have seen (besides the ones I make myself). This is just an example, you should get one that meets the needs of you and your family."
"You can use your house wiring to power your stuff, but you should get a transfer switch. If you have your own water pump, you should really get something like this and you would be in pretty good shape with your generator powering your water pump, so you would not need to store so much water."
"I know this is something you don't usually see in an emergency kit, but you might be glad you have it for a couple of reasons. If you have to evac to a shelter, you might use this to keep a little cooler, or to provide some relief from odors or maybe provide a little background noise. Or, you know how when you are camping out, you might kill for a little breeze? This could help you a lot!"
"Get some totes to store your stuff so you can grab it when you need it. I am not sure of the exact dimentions of this one, so you might should get a bigger one. Be careful you don't make them too heavy to lift!"