But remember that the small members of the family, especially babies, have special needs. Store food in a cool place. If the power fails use fresh food first, then frozen food. Store at least 3 litres of water for each person per day, out of direct sunlight. Options include using bottled water or storing tap water in clean plastic bottles.
People can also use the water from the cistern or hot water cylinder.
Water from other sources must be boiled for 5 minutes, or purified, before drinking. BBQ or something to cook on . In case people are without power or gas they'll need some other way of cooking - such as a BBQ or primus. Small cookers can be purchased at camping and outdoor shops. Check gas bottles and make sure they're full.