Seal gaps around windows, doors, and floorboards with draught excluders or sealant
Use thermal curtains or blinds to retain heat at night
Insulate your attic and walls if this has not already been done—this can significantly reduce heat loss
Place reflective panels behind radiators on external walls to bounce heat back into the room
Switch to LED bulbs- they use less energy
Turn off appliances at the plug when they are not in use
Use energy-efficient appliances and check the energy ratings when buying new ones
Air dry clothes in well-ventilated areas or use a dehumidifier to avoid damp
Batch cook meals to make the most of oven heat
Keep pan lids on to reduce cooking time and energy use