The basic kit

Ready.gov's basic disaster supplies kit (Ready.gov):

Need	Items
Water	One gallon per person per day for several days
Food	Several days of non-perishable food; manual can opener
Information	Battery-powered or hand-crank radio; NOAA Weather Radio with tone alert
Light	Flashlight and extra batteries
Health	First aid kit; dust mask
Shelter in place	Plastic sheeting, scissors and duct tape
Sanitation	Moist towelettes, garbage bags and plastic ties
Tools	Wrench or pliers to turn off utilities; whistle
Navigation and phones	Local maps; cell phone with chargers and a backup battery

What the Red Cross adds

The American Red Cross list (Red Cross) covers the same ground and adds: a 7-day supply of medications and medical items, a multi-purpose tool, copies of personal documents (medication lists, proof of address, lease or deed, passports, birth certificates, insurance), family and emergency contacts, cash, an emergency blanket, and for some families two-way radios and spare car and house keys.

Add for your household

Medicine: prescriptions, over-the-counter medicine, glasses and contact lens solution.
Infants: formula, bottles, diapers, wipes and diaper rash cream.
Children: books, games or activities.
Pets: food, extra water, a carrier, leash and ID tag.
Comfort: a sleeping bag or warm blanket per person, a change of clothes and sturdy shoes, a fire extinguisher, waterproof matches.

Go-bag or home kit?

Pack a portable kit for 3 days in case you evacuate, and keep a larger store at home for 2 weeks, as the Red Cross suggests. The builder switches between both and recalculates water and meals.