First make sure you have a power cut kit in a place that is easy to find if it is dark, this it could be candles matches or a lighter, a torch and spare batteries.
Turn off all of your lights and appliances apart from your fridge and freezer and one light as so when the electricity comes back on you won’t trip a fuse from it being over loaded.
Make sure you keep your freezer door shut until at least seven hours after the power has come back on to stop it from defrosting and the food inside from going bad.
Wind up LED Torch £7.99 www.johnlewis.com
This is great if you are bad at remembering to buy batteries one minute of winding is twenty minutes of light.