Training your boys in martial arts is a fantastic idea, but why leave out your daughters? An ability to act security is good for both sexes, but an ability to secure yourself is even better. Women will, of course, be victimized. One in three is a victim of personal assault now, in the best of times. When there is no hope of help arriving, the ability of causing great bodily harm to an attacker is nothing but a plus.
Every household needs several whole body chem suits. These can be purchased at well-stocked paint or car repair stores. They come from plasticized paper for about $8 all the way up to level 3 hazmatt designed to go with a respirator. At least get the light ones. And everybody needs a box of particulate masks. Remember what was in the air in Manhattan on 9-11 or towns surrounding Mt. St. Hellens?
Yes, the world of disasters is frightening, and we can never be completely prepared for everything. The lists go on forever. But we try, one little step at a time, and we keep our ears and eyes open.
Since hyperinflation is visible as a monetary effect, models of hyperinflation center on the demand for money. Economists see both a rapid increase in the money supply and an increase in the velocity of money if the (monetary) inflating is not stopped. Either one, or both of these together are the root causes of inflation and hyperinflation. A dramatic increase in the velocity of money as the cause of hyperinflation is central to the "crisis of confidence" model of hyperinflation, where the risk premium that sellers demand for the paper currency over the nominal value grows rapidly. The second theory is that there is first a radical increase in the amount of circulating medium, which can be called the "monetary model" of hyperinflation. In either model, the second effect then follows from the first—either too little confidence forcing an increase in the money supply, or too much money destroying confidence.