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The First 100 · Tier Two of Ten · Items 11–20

Three Days at Home

Your household can stay home for three days without a store run or a working tap, and manage common minor injuries while professional care is delayed.

Why this tier, in this order

Three days is where preparedness guidance has traditionally started, and for good reason. The great majority of disruptions that reach an ordinary household resolve within seventy-two hours: the power comes back, the roads clear, the boil-water notice lifts. A household that can sit still for three days without a store run has removed itself from the most dangerous places to be during those hours, which are the roads, the crowded stores, and the emergency room with a preventable injury.

This tier also introduces the medical thread that runs through the rest of the document. Minor injuries rise during disruptions, because people are moving through dark rooms, clearing debris, and doing unfamiliar tasks with unfamiliar tools, and the professional care that would normally absorb those injuries is delayed or occupied. The response here is deliberately modest: basic supplies, basic training, a cushion on prescriptions, and the over-the-counter shelf that makes a bad week manageable. Deeper medical capability arrives in tier nine, after the training that makes it useful.

Two items in this tier exist because of an omission we found everywhere we looked. Every AI-generated list we tested, and most published ones, left out infants and pets entirely. Both appear on the Ready.gov and Red Cross checklists, and both have shorter supply clocks than the adults in the household. They are here, in sequence, where they belong.

The threshold

Your household can stay home for three days without a store run or a working tap, and manage common minor injuries while professional care is delayed.

Rough tier cost: $175 to $350, plus the cost of a certification class and any conditional items.

Items 11–15

11

Three days of drinking water

$per person

CDC guidance is at least one gallon per person per day for drinking and sanitation combined. Three days is the floor. Store more for pregnancy, illness, pets, and hot climates.

Why here. Water is the shortest clock in any disruption and the cheapest thing on this list to fix.

“One gallon per person per day is a survival ration, not a real number.”

Fair, and worth naming plainly. One gallon is a floor set for drinking and minimal hygiene. It assumes no showers, no laundry, and careful dishwashing. If you want to be comfortable rather than adequate, plan for two. We use the published floor because it is verifiable and because a household that hits the floor is far ahead of one that never started. Never ration drinking water on your own initiative. Ready.gov is explicit that you drink what you need unless authorities instruct otherwise.

“Bottled water goes bad.”

Commercially bottled water carries an expiration date you should observe, which is largely about the plastic rather than the water. Water you bottle yourself should be replaced every six months. Both are addressed at item 98.

12

Three days of food that needs no cooking

$$

Food your household already eats. Canned protein, nut butter, crackers, fruit cups, shelf-stable milk.

Why here. Cooking arrives at item 47. Until then, the three-day supply has to work cold, straight from the container, with a spoon.

“Three days is nothing. Store a year.”

Start at three days, reach two weeks by tier four, and go further if you want to. The reason not to start with a year is that people who buy a year of unfamiliar food before they own a can opener have bought an expensive shelf ornament. Depth without sequence is how preparedness budgets get wasted.

“Buy freeze-dried buckets, they last twenty-five years.”

They do, and they need water and heat to become food, neither of which you have yet at item 12. Long-shelf-life food is a legitimate later purchase. It is a poor first one, and it is marketed hardest to people who have not bought anything else.

13

Refrigerator and freezer thermometers

$

Appliance thermometers left inside, readable without holding the door open.

Why here. When power returns you have to decide what to keep and what to throw out. Federal food safety guidance is that a refrigerator holds safe temperature about four hours, a full freezer about forty-eight, and a half-full freezer about twenty-four. Discard perishables held above 40°F for four hours or more. A thermometer turns that from a guess into a reading.

“You can tell by smell.”

You cannot, and federal guidance says so directly: never taste food to determine safety, and appearance and odor are not reliable indicators. This is a two-dollar item that prevents both a foodborne illness during an outage and the far more common outcome of throwing out a working freezer's worth of food that was fine.

14

Household first aid supplies

$$

Adhesive bandages, gauze pads, roller gauze, medical tape, nonlatex gloves, antiseptic, tweezers, scissors, elastic wrap.

Why here. Minor injuries increase during disruptions, because people are moving through dark rooms, clearing debris, and doing unfamiliar tasks with unfamiliar tools.

“That is nine items pretending to be one.”

It is, and this is the one place we accept the criticism and keep the format. These are bought together, stored together, and used together. Nine numbered lines would push something genuinely useful off the end of the list to make room for gauze. We would rather be honest about what a numbered line means than pad the count.

“Buy a pre-made kit.”

A pre-made kit is a reasonable starting point and better than nothing. The reason we list components is that most commercial kits are ninety adhesive bandages and four things you need. If you buy a kit, open it, inventory it, and fill the gaps.

15

First aid and CPR training

$$

An in-person certification course, widely available through the Red Cross and local fire departments.

Why here. The supplies at item 14 are worth more to someone who has practiced with them, and this is the only purchase on the list that improves every medical item that follows.

“This is a buying list. A class is not a purchase.”

It is a purchase, it has a price, and it competes for the same budget as everything else here. Its inclusion is deliberate and we expect the objection. Our position is that a household with training and a basic kit is in better shape than a household with an advanced kit and no training, and that the second household is far more common because the gear is easier to buy than the class is to attend. This item also sets a precedent the list returns to at item 82: where a capability requires training to be safe, the training comes first in the sequence, every time.

Items 16–20

16

Seven-day prescription buffer

$$

A week's cushion on every prescription anyone in the household takes daily.

Why here. Pharmacies close, run out, and lose their computer systems. A missed dose becomes urgent faster than a missed meal, and for some medications it becomes dangerous.

“Insurance will not authorize an early refill.”

Often true, and worth knowing that it is a negotiation rather than a wall. Ask your prescriber for a vacation override or an extra thirty-day script. Ask your pharmacist which of your medications have the longest fills available. Many states also have emergency refill provisions during declared disasters. If your medication is controlled, this route may genuinely be closed, in which case build the buffer through timing rather than volume.

17

Core over-the-counter medications

$$

Pain and fever reducer, antihistamine, anti-diarrheal, antacid, cold and cough.

Why here. The common ailments that make an ordinary week difficult make a disrupted week much worse, and a stomach bug during a water outage is a genuinely serious situation.

“Half of these expire before you use them.”

Buy the sizes you use in normal life, keep them in the medicine cabinet rather than a sealed bin, and let ordinary use rotate them. Preparedness supplies that live separately from your life are the ones that expire.

18

Oral rehydration salts

$

Commercial electrolyte packets, kept with item 17.

Why here. Dehydration from a stomach illness is the most likely medical emergency during a water disruption, and it is treatable at home if you have the packets and hard to manage if you do not.

“You can mix salt and sugar in water.”

You can, and the ratios matter more than most people realize. Commercial packets are pre-measured, cost almost nothing, and remove the arithmetic from a moment when someone is sick and you are tired. Learn the improvised formula as a backup, not as the plan.

19

Three days of infant supplies

$$conditional

Formula, baby food, bottles, diapers, wipes.

Why here. Because it belongs here. This item exists because every published list we tested, including four separate AI systems asked to write a universal household list, omitted infants entirely. A household with a six-month-old has a shorter clock than any other household on this list, and putting formula at item 85 would be a serious error.

“Anyone with a baby already has this.”

They have several days of it in normal rotation and no deliberate buffer, which is the same situation as everyone else on this list. The specific failure mode is running out of formula during a boil-water notice, when the water you would mix it with is also compromised. Ready-to-feed formula solves both problems at once and is worth having some of even if you normally use powder.

20

Three days of pet supplies

$$conditional

Food, water, and any medications, for each animal.

Why here. Same reason as 19. Pets appear on the Ready.gov and Red Cross lists and vanished from every long list we examined.

“The dog can eat what we eat for a few days.”

Sometimes, and a sudden diet change in a stressful week produces a digestive problem in a house with no working toilet. Pet water also has to be counted separately in your water total, which is the part people miss.

Keep the sequence

One tier at a time, in order.

Back to the full hundred-item list