Dad's frame of reference was the 1930s and mum's was the misery of an Irish convent boarding school at the end of WW2 so the 70s and 80s in Ireland may have felt familiar to both of them. We had home grown fruit and veg - tonnes of every conceivable thing you could grow in a garden, and they bought a deep freezer to accommodate it all.
Mum made all our clothes, and knitted. She cooked and baked from scratch. At one point she had a job at home doing sewing for a wedding dress designer.
My parents never saw the need for central heating (both grew up in woolly clothes in freezing houses and dad had been at a boarding school where the daily regimen included a swim in an unheated pool) and felt vindicated when the oil crisis of the mid 70s hit. However, even when that crisis was long gone they still didn't get central heating. Dad would cut up fallen trees from an aunt's farm and haul back big boles which would then be split into logs by me aged about ten. I can still wield an axe with reasonable accuracy. We would stack the log pile neatly and cover it over with a tarp. One year dad secured a little patch of bog in the Wicklow mountains with a friend and the two families had a good deal of fun cutting turf. We still used to have a fire that burned 'slack' though.
I honestly felt warmer outdoors splitting logs than I ever did inside the house. I have vivid memories of wearing fingerless gloves, sitting in a sleeping bag and wearing chunky, hand knitted wool jumpers (plural) trying to keep from freezing solid while doing homework or studying in secondary school in the late 70s, early 80s.
We went to a private primary school and had private dental treatment, plus treatment at Dublin's dental hospital thanks to dad's dentist brother. Holidays were at my grandmother's house or in an aunt's caravan. Mum used to pack two weeks worth of food for us to take to the caravan, which was supplemented by the huge treat of bought sliced turkey or ham and shop bread. I remember a good deal of tutting at people going abroad to spend their money instead of shivering in a B&B in some rainswept beachfront in Ireland. My sisters and I would have loved a holiday where we would feel warm even after getting out of the water. There are photos of skinny little me on a beach in my swimming togs with blue lips.
My poor sister got awful chilblains for years, and she had serious asthma. Still no attempt made to warm up the house. One of my DCs came across chilblains in a book and I had to explain what they were.
Part of what motivated my parents to be so self sufficient was the need to save money. We had enough to keep us ticking over, certainly more than the ragged children we saw on the doorsteps of tenements on the north Dublin street where we went to get measured for our tailored school uniforms. More than most, maybe. But mum grew up on a farm with a fear of The Bankman, and dad had seen the crash of 1929 and the horrors of 1930s Britain (albeit from the comfortable distance of the RAF) and I think they considered life to be precarious and everything we had could disappear overnight. Deep down though, they would have been very happy living on some self sufficient commune, the colder the better, and the fewer domestic appliances the better too.
We had a black and white TV that dad bought from a pub which was switching to colour. You had to sit on the floor beside it and hold one of the knobs to tune it to BBC1 and 2. Mum had a big washing machine with a wringer and a tiny, ancient fridge that was actually superfluous thanks to the chill of the house. Buying a hoover was a purchase that had to be deliberated over for months. Same for a hand mixer that had to be replaced when it died when I was making a sponge.
For days out we went to the nearby hill and walked in the forest there, or to walk along a local pier. Or the national art gallery, which was free iirc. A neighbour used to take her kids and me to Djouce mountain in Wicklow and let us loose in the forestry and the heather for hours.
I was aware that Not Spending Money was the name of the game, and frankly it annoyed me. It certainly made me value basic necessities like a warm home and appreciate that it does children no harm to have stuff that everyone else has.