What have I missed?
Freeper don’t have a problem with blogs if they post articles in their entirety.
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Good list for basic survival
In a real TEOTWAWKI you must survive three things: 1. The event if immediately hazardous, 2. The anarchy, looting murdering starving raping etc. 3. The long term where you must grow your own food.
1 & 2 can be accomplished with a fully serviced (air, water, sewer, heat, stored food and fuel) basement below a fireproof house or a shelter. In any case it must not be discoverable by starving gangs out to take whatever they can find. This could be from 3 mo to a year.
3 is where you need the tools. Read how people lived 100 years ago without electricity. They made their own tools. They were wizards at making things work, it is what made this country great. Plan now for the land you need to grow what you need. Add the soil amendments now so the soil is right when you need it. Plant, harvest and then save seeds from NON-HYBRID plants. If you wait until TEOTWAWKI to do all of this you and your family will not make it.
Good luck.
Something else I would add is the materials to maintain the tools. Lubricants, cleaning materials, sharpeners for the edged tools.
Since you are just getting started, you might have a relatively short timeline in which to get prepared. You need to prioritize your purchases based on the immediacy of your needs. First, and perhaps equals, are food and armament. Without these, you are toast anyway. Think of your existence in blocks of days or weeks. Within days you’ll need water. Within weeks you need food and armaments, as the zombies may not get to you until a week or so after the event, depending on where you live. The medical, communications, come next. So you can make this priortized list according to where you live and your budget. If in a city, the zombies may be at your door in 2-3 days; if in the country, it may be weeks. If in the country, your water needs may already be met by a well, so your existence for 3 days is covered and perhaps your need for guns, as well, since the zombies will ravage the cities first. And so on.
A hand pump sure. But what if you do not have one. Learn how to make a skinny water bucket from pvc pipe and inner tube material. Or a one way valve and a pvc pipe and a bicycle.
The thing is you cannot remember everything so research all you can now, print it out, get reference books from 1900 so that you can improvise when there is no Lowes.
Going to grow food after TEOTWAWKI? How much water do you need and where are you going to get it. Really, a trickle system might use 1/2 inch a week. Times an acre is almost 60,000 gallons a month less rain that arrives at the right time. Surface watering would be about 120,000 gallons per month, more in sandy soils. How do you get that water to where you need it without electricity or fuel?
These things need to be figured out now, before TEOTWAWKI.
People who live in rural areas probably already have the tools they will need.
Something from a bygone era is lighterd stumps. I can remember when everyone had one and would just go out in the yard and chop a few splinters of “fat lighterd” to start a fire. I think some people say the proper name is “light wood” but I have never heard anyone say that.
It works better than any commercial fire starter I have seen.
http://biolitestove.com/campstove/camp-overview/features/
I have these tools - got them at Amazon:
Columbia River Knife And Tool’s Eat N Tool 9100Kc Black Oxide Multi Tool $5.25
G.I. Type P-51 Can Opener - 10 Pack
Sold by Survivalist USA $4.82
Swiss+Tech UKCSB-1 Utili-Key 6-in-1
Keychain Multi-Tool $8.26
just picked up one of these with sheath at Wally's for $27.95... it's heavy duty titanium coated stainless steel for digging, chopping and cutting 
Camillus 18" Titanium Bonded Carnivore Machete:
First aid and health?
Bolt Cutters. You never know when a lock keeps you from your goal.
In the cutting tools-saw category, I need to add a one man and a two-man cross-cut saw, and a couple more bow saws with spare blades. Chainsaws won’t be of much use in a long extended downtime without gas/oil and lubricants.