I grew up in the 70s and 80s in a solidly middle class family, and it was a different world from today.
Furniture - never replaced unless it was broken. Same with carpets, cushions and curtains, never updated for "fashion" only if they were torn etc.
Clothes, one set of school uniform (change of blouse), jeans that were bought too big and turned up and let down as you grew, patched if they tore. A couple of t-shirt/sweaters and a "best" outfit. A pair of school shoes, and a pair of trainers. School shoes doubled up for "best". Some clothes like nighties and dressing gowns and my gingham summer school dress were home made. Things were repaired not replaced until they were well and truly grown out of. They'd then be passed on if possible.
Adults also only had sufficient sets of clothes, and only replaced when worn out. Definitely no overflowing wardrobes with multiple outfits.
Obviously no "modern" appliances like microwaves and mobile phones. What we did have (washing machine, tv, hi-fi) was repaired (by my dad, who worked in an office and had no electronic/mechanical skills) if it went wrong. Never replaced unless unrepairable. Same with household maintenance, my parents turned their hands to it if they possibly could, never paid a tradesman unless it was unavoidable.
The phone was only used for necessary calls. No long chats etc.
Bathing/showering once a week for kids. No idea how often my parents bathed, presumably more often. I doubt it was every day though, I'd imagine more likely it was 2/3 times a week with wash-downs in between.
We had two cars, one was my dad's company car and that was replaced frequently. My mum, however had the same (old) car throughout my whole childhood. It was replaced when I was about 16 as I learnt to drive on the "new" secondhand car.
Food cooked from scratch. Lots grown in the garden, or picked from the wild. Sufficient food was cooked with no waste. My mum walked around various shops to save a few pence here and there. No takeaways or meals out. We did seem to have a better range of affordable meat than now though - duck, lamb etc as well as beef, chicken and pork.
We had toys and books, but not loads. We kept them and looked after them, they were often bought second hand, and sold back on afterwards. Nothing was disposable, everything was valued.
Holidays were in the UK, once a year for a fortnight. Even then we didn't eat out etc. It was all about beaches and walks in the country etc.
My parents worked very hard, and we were relatively comfortable. They worked less outside the home (my mum not at all) than we did. Food, clothes etc were much more expensive relatively then than they are now.