Start a bottled-water reserve on your next grocery trip

Make the gap visible

A water target can be easy to write down and harder to bring home. You still have to pay for it, carry it, and find somewhere to keep it. If the whole target feels too big for your next grocery trip, start by separating what your household needs from what you can reasonably add today.

CDC recommends at least one gallon per person per day for three days, and trying for a two-week supply if possible. It also says to consider additional water for pregnancy, illness, pets, and hot climates. That's a planning baseline, rather than a promise that the same amount will meet every household's needs. The full CDC guidance is linked below. CDC: How to Create an Emergency Water Supply.

Count the unopened commercial bottled water you've already set aside. Use the volume on the labels, not the number of bottles: two packages can hold very different amounts. Write your target and the amount you've got on the same note. The difference is the gap you're working on, even if you can't close it in one shop.

Choose the space before the package

Before adding water to your list, choose an accessible storage spot and check the manufacturer's storage instructions. Think about who'll need to reach it and whether they can handle the container size. A package that you can buy but can't comfortably carry or open may need a different plan.

FDA advises keeping stored bottled water as safe as possible from flooding. Don't use a spot just because it's empty; consider its suitability and follow any local guidance that applies to your home. If space or carrying is the obstacle, write that down alongside the shortage. It deserves attention too. FDA: Food and Water Safety During Power Outages and Floods.

Now compare package volumes and total prices using your actual grocery budget. Set an amount you can spend without crowding out today's essentials. You don't need a particular brand or an impressive-looking stack to make this next step useful. If a purchase isn't possible this trip, finding a suitable spot and recording the gap still gives you a clearer starting point.

Finish the purchase with a note

CDC identifies unopened, commercially bottled water as the safest and most reliable emergency water source. Keep your reserve unopened, and observe its expiration date. This small shopping task doesn't cover home-filled containers or water treatment; those need their own instructions.

When you put the water away, update the stored volume and note the location and the package's date. If someone uses a bottle during an ordinary week, adjust the total and put replacement water on the shopping list. That keeps the note connected to what's actually there.

You're done with this step when you can answer three questions: how much is stored, where is it, and what's the next manageable addition? You may still have a gap. The payoff is knowing what it is, with a next purchase that fits your household instead of another vague reminder to get prepared.

Source: CDC: How to Create an Emergency Water Supply.