Some evangelical Christians hold to an interpretation of Bible prophecy known as the post-tribulation rapture, in which the world will have to go through a seven-year period of war and global dictatorship known as the "Great Tribulation". Jim McKeever helped popularize survival preparations among this branch of evangelical Christians with his 1978 book Christians Will Go Through the Tribulation, and How To Prepare For It.
First, you’ll probably want to experiment with more than one variable withdrawal rate tool. I like the cfiresim.com web calculator best. But other calculators exist too, including a simpler variable withdrawal option at firecalc.com and Bob Herlien’s variable withdrawal rate spreadsheet (available here). And we probably all get better insights into the flexibility we need to show if we run lots of simulations using different approaches.
Bob Kay, a nutritional scientist in Southern California, is prepping for environmental destruction due to massive earthquakes; politician Joshua Wander is preparing for a terrorist attack, teaching others about prepping and stocking up kosher foods (matzos and mre's); Ryan Croft is prepping for a global financial crisis by cultivating alternative food sources like spirulina and earthworms.
One final item that you may want to consider adding to your kit is a “cheat sheet.” A cheat sheet should include any information that may be of value in a survival situation. This may include first-aid procedures, a list of geographical references for navigating without a map, instructions for tying various knots or a list of edible fruits in the area. You’ll likely want to print out such a list and then have it laminated to protect it. However, it will be easier to pack several small cards rather than a single large card, if your list ends up being rather long.
I love UCO’s Stormproof Matches. They’ll burn in a downpour. You can even strike them, stick the lit match in a glass of water, pull it out and it will re-light like some kind of magic trick. But UCO isn’t a one-trick-pony, and those remarkable matches aren’t the only tool they provide for our survival. The UCO Stormproof Torch can take your fire building to a whole new level, blasting out flames from their patented triple jet system. This pint-sized blowtorch is actually a refillable butane lighter, and it’s one of the fiercest on the market. The triple jet torch is windproof and water-proof, with an adjustable flame to conserve fuel (or let it roar). Each lighter holds enough butane for roughly 700 ignitions, and it ignites with a piezo-electric ignition system that is rated for 30,000 uses. Keep in mind that you’ll have to purchase the fuel separately and fill the lighter yourself (due to hazardous material shipping regulations); but this is easy to do and well worth the trouble. The UCO Stormproof Torch is a fire on demand, even in the wettest weather.
Is it stereotypical that the AARP crowd would be the ones to spend three hours talking about metal detectors and canning and caving at a Pizza Hut on a Monday night? Probably, but that’s what I bore witness to in this event room; its combination of exposed wood and stock-photo decor felt like an Olive Garden inside a pirate ship. Up front, the scraggly white-bearded, Bad Santa–lookalike Andrew: rested one foot on a chair, gripping the mic, just like Randall said he would be. 

Prioritizing your needs can best be determined by considering how long you can go without one of your needs before you risk physical harm or death. For instance, if it is spring or summer, staying warm is not a huge priority (unless it is raining and you have no shelter), because the risk of hypothermia during daytime hours is low. Consider this same factor in the wintertime and that fact that frostbite and hypothermia can set in within a matter of hours, and suddenly finding a warm place to stay and building a fire is of paramount importance.
Boil water for 10 minutes! Really! This is a myth. When water comes to a boil, thats it, done, finished. The other 9 minutes and 50 seconds are useless, impractical, and stupid. What, are you trying to cook or kill organisms? I like mine well done so I think I will boil them for 15 minutes. But if I want to just kill them I will boil them, when the water boils, they are dead.
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Nail your studs together in lengthwise pairs at a 90-degree angle to form braces. This makes them stronger. Then run three or four braces horizontally across every door, hammering the nails from above and below directly into the frame at a 45-degree angle. If you drive them straight in, they're easier to pop out when somebody kicks the door. Use more braces to secure the drywall over the windows. Try to use longer nails and leave a couple inches of each nailhead sticking out for easy removal. — Clint Carter
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