But unless someone starts asking me personal questions, I simply ignore everyone at the store and don’t ask them if they are prepping…I already know the answer. People will know, and there’s not a lot you can do about it. If asked, I simply say, I’ve been reading about emergencies happening with greater frequency around the globe and say that “I’m not going to get caught without at least some food and water” when it happens here. They don’t need to know I’m prepping for a month-long, six-month-long, or year-long, or multi-year-long event. We don’t keep all our food in our pantry and I’ve told my relations that what we have (be it beans or bullets) is no one else’s business–so keep your yap shut
Knives. Very lethal and dangerous at close quarters, but only provided that you have the element of surprise on your side. They require some degree of physical fitness and training to use well. Their value is diminished when facing multiple assailants or dealing with a gun-wielding individual: even if you stab them, you are probably still gonna get shot. In a handful of places, carrying a knife may be illegal or subject to somewhat confusing restrictions, so perform due diligence if you want to take this route.
This brings us to the "how". In most cases, the absolute minimum water intake is somewhere around one quart per person per day; but note that this assumes no weather extremes, no substantial exertion, and no immediate hygiene needs. When these assumptions hold true, storing about 1.5 to 2 gallons per household member - enough for perhaps up to a week - should provide a viable if modest buffer for short-term emergencies. Store-bought gallon jugs are pretty cheap, hassle-free, and easy to squeeze in just about anywhere; if you keep them away from sunlight and heat, they should last 5+ years before needing to be rotated or thrown out. Don't try to save a buck by reusing milk or juice jugs, though: they are almost impossible to clean properly and may end up supporting bacterial growth.
Precious Metals – Investigate this for yourself, but I find the arguments and historical track records against fiat currency and the current rumblings of Government wanting to take care of your investments for you very compelling. Gold is easier to transport with the high cost to weight, but you might have problems cashing a gold coin for a tank of gas. Silver is where I have chosen to invest in precious metals.
In the end, ladders, cars, and space heaters are a much greater threat to your well-being than a gun-totting robber or an army of zombie marauders could ever be. So, gleaned from accident statistics, here are some of the familiar-sounding but crucial survival tips. It may sound unlikely, but if something appears on this list, it's responsible for quite a few gruesome deaths or injuries every year; take it to heart.