I also grew up in the 70s and 80s in a reasonably large 3 bed house with only one gas fire in the front room. There was the ice thing going on on the insides of our bedroom windows in winter, it wasn't pleasant but we just jumped out of bed and hopped about a bit to keep warm, got dressed quickly etc.
Winter was electric blankets, warm clothes, I can't remember a time without slippers when I lived at home. We were just used to it and it was a part of winter.
However I do think that now we are so used to central heating etc we feel the cold more, so we've decided to train our bodies this year to get used to lower temperatures. We haven't had the heating on yet but dp has put the woodburning stove on (installed last December, has almost paid for itself already) just for a few hours each evening after we've had tea. So instead of keep stacking it with wood, he lights it, and we only 'refill' it once so that its not burning much by the time we go to bed but the metal stove is still hot and radiating heat. We are determined this year to only use the central heating as an addition to the stove, unlike last year when the heating just came on then we put the stove on if it wasn't quite cosy enough in the front room.
Also we have a stovetop kettle which we keep on it,, provides hot water (not quite boiling just needs 20 seconds on the gas ring to finish off) a few times a night plus the water for one hot water bottle.
Then sometimes we put a pan of beans on it and toast bread in front of it - meal cooked for free! Or baked potatoes inside it.
One thing dp is really strict about, and me too since I realised he is right, is keeping the house dry. It feels so much warmer as you are only having to heat air, rather than damp air. The poster who said the warm air from the heated clothes dryer thingy goes into the house - well so does all the water out of the clothes.
We never ever ever dry clothes in the house - even if the rain stops for an hour or so I will bung some washing out on the days I'm at home, it makes a big difference, and then tumble dry only if I absolutely can't get it dry outside. The cost of the tumble dryer far outweighs the cost of heating damp air imo. Also, even when its bitterly cold we open all the doors for at least 10 mins every day to air the house. Old houses with open fires used to feel warmer cos they were so well ventilated. So yes to draught excluders when you are sitting still in the house and trying to keep heat in, a big fat NO to blocking up airbricks and making your house damp by lack of ventilation.
I am not going to suggest leaving the oven door open after cooking, cos when we were skint, use of the oven was limited as its expensive to run.