Include sources of protein, fats, vitamins and minerals, and rotate older supplies into normal household cooking. Month One: £100 to £200 for basic food, water containers, torches, batteries, first-aid supplies and hygiene products. Month Two: £150 to £300 for additional food, cooking equipment, power banks, radios, water treatment and protective equipment. Learn first aid, basic navigation, emergency cooking, water treatment, food storage, fire safety and how to isolate your home’s electricity, water and gas. A three-month supply of food, water, power, medical equipment and basic household necessities can transform an emergency from a catastrophe into an inconvenience.