A cyber attack would be less destructive than an EMP, but it could still cause total chaos – and cyber attacks aren’t just something that could happen. They’re happening now, and already causing disruption on a large scale. The World Economic Forum estimates cyber attacks will cost $8 trillion over the next five years, and that’s just the financial impact.

Medical Kit- Your first-aid supplies should be able to treat common injuries and minor trauma. Get band-aids, compression bandages, plenty of gauze and gauze pads of all sizes, (get hemostatic gauze if you can spring for it), burn cream, a few tourniquets, medical tape, moleskin, antiseptic, slings, butterfly bandages and liquid stitch. You absolutely must stockpile any necessary medications you take on a regular basis no matter what they are. Talk with your doctor and explain to him what you are doing so he can get you a scrip for the required quantity.

A quantity of gold or silver may be a contentious inclusion for some people, but like cash, things will have to be dire indeed before both lose their appeal to humanity. A handful of gold or silver can be converted into just about anything of equivalent value, anywhere, in a hurry and gold especially can secure you a favor that you otherwise may not be able to get.
3. Supplies for bartering: These are my lowest priority but it never hurts to have a little extra of something that could be useful for bartering in the future. But remember your situation is different from mine. You might not have the room to store hundreds of gallons of fuel or water, so you might want to stockpile supplies that take up less room like batteries, lighters or water purification tablets that can be used to barter with in the future.
Sanitation Supplies- You definitely don’t want to overlook this! You don’t need to have everything you take for granted on a daily basis, but you need to take care of the basics. Most obviously get plenty of toilet paper, wet wipes and feminine products for cleanliness. Get more TP than you think you’ll need; trust me, the first time you have to use improvised material or technique to clean your rear, you’ll remember me, and women need more than men do at any rate. You may yet have to switch to pinecones, but let’s forestall that as much as we can, eh?
3) the best part? many of them have something that is not advertised on the Internet: 20-lb paper bags of both red and white hard wheat at an amazing price! No, you can’t #10-can them and they can’t ship them, but if you live in a reasonable drive or a friend is going near one, it’s definitely worth a little effort. Again, call ahead and make sure before going.

The reason the vacuum sealing system’s up on this list is because I feel food has a much longer “shelf life” so to speak when its vacuum sealed before being thrown in the freezer. Used to have a lot of power outages when we lived in Toronto, and each time our food would thaw out a little it’d taste worse and worse – except for the one vacuum sealed slab of meat we got from a neighbour which I think withstood 2-3 power outages (one which lasted 4-5 days) and tasted as though it was vacuum packed the day before. I’ve also heard of people vacuum packing rice into smaller one-serving portions, and have always thought that a great idea for cases you might want to throw a bunch into a pack and go, or just generally extend the shelf life of your food/prevent rats and mice from getting into things. Necessary? No. Definitely still something I want, though.
Much of what has been said I agree with. What I do take exception is that many think that an EMP Pulse at this point in time would be somehow less devastating then a nuclear attack. A Nuclear attack kills rapidly initially and then other problems would cause a die off. An EMP Blast would not kill masses but it would be equally devastating as all infrastructure fails and mass starvation, lack of resources would have the same effect. Read the Book 1 Second After and it illustrates how bad things could really be. I am not minimizing the devastation of a Nuclear Bomb. I am pointing out that the impact woult probably be close to the same.

One major upside of freeze-dried food is its convenience. Since all its water content has been removed—via a process that involves exposing food to subzero temperatures, while removing the resulting water vapor with a vacuum—it’s easier than canned goods to transport on the fly. To “cook” Wise Company’s six-grain Apple Cinnamon Cereal, you just boil three and a half cups of water, dump in the powdery contents of the bag (minus the oxygen absorber), and cover the pot for 12 to 15 minutes.