Use a microwave. Generally a microwave oven is the most efficient way to heat up and cook food.

Wash fruit and vegetables in a bowl, not under a running tap, to cut water use. Use the leftover water for your houseplants or patio pots.

If your charger has an LED to show it’s in use, it is still using energy until you switch it off at the wall or unplug it.

Thermal or heavy blinds and curtains can help trap heat and reduce draughts. Close them at night to reduce heating bills.

Make sure your radiators are clear so they can heat the space efficiently. Curtains or furniture can easily block them.

A dripping tap can waste at least 5,500 litres of water a year. If this is hot water you’re also wasting the energy used to heat it. Get leaking taps fixed promptly.