Most prep planning focuses on power, water, and shelter — all genuinely important, but two things get overlooked until they're suddenly a real problem: having cash when card readers don't work, and having your documents when you need to prove identity, file an insurance claim, or re-enter an evacuated area.
Cash: How Much, and Why
Why cash matters specifically: ATMs and card readers don't work without power, and gas stations and hotels commonly switch to cash-only in the days after a major storm or outage. This isn't a hypothetical — it's one of the most consistently reported post-disaster friction points.
How much is genuinely useful varies with what you're planning for:
- A baseline emergency reserve of $150–$300 in small bills (fives, tens, twenties) covers a short outage — a few days of gas, food, and incidentals.
- For evacuation-level events (hurricane, wildfire), financial planners commonly suggest a more substantial reserve — in the range of $500 per person carried in a go-bag, scaling up toward $2,000–$5,000 for a household of four when accounting for several nights of lodging, fuel, and food if you're displaced for an extended period.
Small bills matter more than the total amount — a $100 bill is genuinely hard to break at a gas station running on a generator with limited cash on hand.
Where to keep it — spread it out, don't concentrate it in one place:
- A small amount in your wallet/purse for daily-carry access
- $20–$40 in your car's glove compartment
- The bulk of it in a locked, fireproof safe bolted to something immovable — not a drawer, not "under the mattress," not the freezer (a common but genuinely bad hiding spot when the actual risk is fire or flood)
- A portion in your go-bag, ready to leave with you on short notice
Documents: The List
Keep these on hand, ideally in your go-bag, as photocopies (never risk the originals in a bag you're carrying through an evacuation):
- Government-issued ID and passports
- Insurance policies (home/renters, auto, health, flood if applicable)
- Birth certificates and Social Security cards
- Medical records and a list of current prescriptions/dosages
- Bank account and financial account information
- Deed or lease agreement
- A recent photo of yourself standing in front of your home, house number visible — this sounds unusual, but it's genuinely useful proof of residency, since some evacuated areas only allow verified residents back in during recovery.
Where to Store the Originals
This is where a lot of people get the strategy backward — originals need protection from fire and flood at home, but also need to survive if your home doesn't:
- A fireproof, waterproof home safe for your original documents day-to-day. Look for a genuine UL fire rating (commonly rated to protect contents for 30 minutes at 1,550°F) — a basic lockbox without a real fire rating gives a false sense of security.
- A safe-deposit box at a bank branch outside your immediate area for duplicate copies of the most critical documents (deed, insurance policy, birth certificates). "Outside your immediate area" matters — a safe-deposit box in a branch that floods along with your house doesn't help you.
- Digital backups in the cloud (Google Drive, iCloud, Dropbox, or an encrypted flash drive) for everything — accessible from any device, anywhere, even if every physical copy is lost. This is the single easiest step to actually do this weekend, and it costs nothing.
Put It Together, Don't Set It and Forget It
A financial/document emergency plan only works if everyone in your household actually knows where things are — who carries the cash, where the go-bag folder lives, how to access the safe. Walk through it together once, and revisit it at least annually (insurance coverage limits and rebuilding costs both drift upward over time, so a policy that was adequate two years ago may not be today).
Related reading: Home Go-Bag Essentials and Family Emergency Communication Plan