Of course, some "doomsday" preppers worry about even more exotic, post-apocalyptic scenarios mentioned in section 2.3, basically aiming for indefinite self-sufficiency. I don't think it's a particularly sound concern, but if the prospect of a civilizational collapse keeps you up at night, my best advice is to move to a rural community where you could farm, fish, or hunt. Some urban survivalists fantasize about trapping local squirrels, pigeons, or raccoons - but they would run out of food very fast. Small urban and suburban gardens are usually difficult to maintain and don't produce enough to feed a family, too.
In tropical areas, a survival kit may have mosquito head netting, additional insect repellent, anti-fungal cream, a machete, water purification tablets, foot powder, matches, a flint strike, a compass, a wire saw, a space blanket, medical equipment (gauze pads, elastic gauze bandage, antiseptic creams, anti-malaria tablets, anti-infection tablets, bandages, etc.), salt tablets, a fishing kit, snare wire, extra socks, a candle, a signal mirror, flares, a sewing kit, safety pins, tinder, tape, a whistle, and rations.
Be critical of any assumptions you are making in your plan: sure, you have seen it all in the movies, but search for statistics or historical accounts to better understand how such events typically unfold in real life. Don't assume that all contingencies are covered by a generic home insurance policy, too: for example, earthquake and flood coverage is often sold separately (and costs a lot); and in any case, even if the insurance will eventually pay, you still need a short-term survival strategy to deal with the loss.
"I had a dream not long ago that was sort of like God said, ‘I will show you these things,’ and that we’d lost both grids on the East and West Coasts, and I saw trains coming in, packed, standing-room only, from both coasts, and they were just releasing them into Mark Twain and everywhere. Those people were then forming little camps—15, 20 people per camp. And I saw a colored boy and a white boy, youngsters, and they were talking. And the white boy is talking, and he says if you steal wood from any of those people, only take one piece, because if you take more than that they’ll miss it. 
In his 2016 book, Can It! The Perils and Pleasures of Preserving Foods, Gary Allen, a food writer and adjunct professor at SUNY Empire State College, traces the evolution of food preservation as a source of culinary innovation. “The original food-preservation methods—like salting and drying and all that—actually turned the food into something else,” he told me over the phone. “Cabbage sauerkraut is not the same thing as cabbage. Wine is not the same thing as grape juice.”
I used to focus only on preparing for earthquakes and other natural disasters. That changed in 2011 when I went to my first protest, an Occupy Oakland action, with a medic bag. I didn't know yet that I'd be out there for hours, so I didn't have supplies I consider basic now — food, caffeine, extra smokes, insoles for my combat boots. I didn't know how aggressive the police would be, and the handkerchief around my neck was more for a punk look than medical necessity. I hadn't received formal training to be a street medic; I just happened to know first aid and CPR and wanted to help. I carried a 15-pound bag on my back, full of medical supplies, mainly gauze and tape but also things like tourniquets that I hoped I wouldn't have to use. I was scared — I'd had rubber bullets shot at me the night before — but I was determined to drop off water to the protesters and make sure that people had sterile supplies.
Rice. This is an old standby. It can form the base of many tasty and nutritious meals. Be aware that although it requires no processing, it does require quite a bit of water to cook. It is most economical to buy rice in 40 lb bags and repackage it into buckets yourself, a 5 gallon bucket will hold a 40lb bag. For a bit more you can find rice sold pre-sealed in buckets from a number of sources.
Thrive Life Foods. This is my favorite of the freeze dried foods for one simple reason- They sell ingredients, not dishes. With this brand, you can stock up on nimber ten cans of ingredients that you use in favorite dishes. You are not constrained and can prepare the meals that your family is used too eating, cooked from your standard recipes. Unopened cans have at least a 25 year shelf life, and some items are available in 5 gallon buckets. Thrive Life foods can be found online.

This step is imperative, but it is one that a lot of preppers overlook, to their own detriment.  It is absolutely essential for you to know the coupon policies of the stores you frequent. Some stores have a limit on how many copies of one coupon they will accept. Some stores have a policy where they will double any coupon worth less than $1.00.  Some stores have special promotions there they will double all coupons, or triple all coupons, on certain weeks of the year.  Some stores have policies where if you have a coupon worth more than the value of an item, they will pay you the difference, while other stores will not give you anything more than free. You need to know the policies of each store to help you determine which stores have the best deals.  You also need to know when to shop at each store, since you may be able to get a better deal during a double or triple coupon week. This will require some consistent research, but keeping track of store policies can pay big dividends.
When it comes to transmittable diseases, your best bet is avoiding exposure: if there's something really nasty making rounds in your community, stay home - or at the very least, avoid public transport and other crowds. With that in mind, N95 masks ($2 a piece) probably provide adequate protection against most airborne diseases. The other major transmission vector is hand contact, so don't touch other people, avoid public-use surfaces, wear gloves, and resist the instinct to touch your face without first washing or disinfecting your hands. We subconsciously touch our faces a lot more frequently than we suspect.
We get tired of eating the same foods over and over and many times prefer not to eat than to sample that particular food again. This is called appetite fatigue. Young children and older people are particularly susceptible to it. Store less wheat than is generally suggested and put the difference into a variety of other grains, particularly ones your family likes to eat. Also store a variety of beans. This will add variety of color, texture and flavor. Variety is the key to a successful storage program. It is essential that you store flavorings such as tomato, bouillon, cheese, and onion.
One of the biggest obstacles for new preppers is building a stockpile of food and supplies in case of emergencies. Having enough money to reach a critical mass for the stockpile can take years, causing frustration and burnout. To combat this problem, a lot of preppers turn to couponing, and rightly so.  However, a lot of preppers also remain skeptical of couponing.
Radio transceiver, standard VHF marine when operating near inland shore, 121.5 MHz AM VHF guard channel capable aircraft band transceiver to contact rescuers and high overflying commercial and military aircraft visible by contrails, an optional amateur radio if a licensed radio amateur, (see Ham Radio) or an AM/FM/Weather/Shortwave radio receiver to receive precise time for celestial navigation as well as weather information