Prepare an emergency food supply that will last each individual several days or as much as a week. Use foods that your family likes. Canned foods, dry mixes, dehydrated fruit, etc. Try for a balance meal approach. Don't forget a manual can opener in the event of a power outage.
Foods stored in dark, cool areas lasts longer.
Rotate food items from storage at least once or twice a year to avoid spoilage and keep freshness. It may be helpful to write the date on the items the day they were stored. Perishable foods such as milk, meats, etc. If still cold, these foods should be used first. Foods in freezers can last several days without power if the door is not opened frequently.