LED Fairy lights all the way.
When you go to bed, switch off - at the wall - your cooker, microwave, chargers, gaming stuff, telly, plug-operated doorbells, alexas that aren't needed overnight, printers, laptops, PCs, TV. Leave nothing unnecessary on standby.
I have an electric blanket (godsend and v cheap to run) and bought myself and my lad one of the wonderful oversized fleecy hoodies on amazon for £24 each. They're brilliant. Toasty warm.
My feeling is, this is a war. And when you are at war with a killing machine who will stop at nothing, we must be prepared and willing, to make sacrifices. And share the pain of those Putin is killing. Our pain (for now at least) is sanctions - so higher bills, food prices, petrol.
But the squeeze/stranglehold on Russia MUST continue and we just have to manage as best we can. With set jaws and strong hearts.