Thank you for the book recommendation. I think this is such an important conversation to be having -all the time.
We were just looking around our rather dated kitchen (in our rather dated house) last night, talking to our DC about how even choosing not to do something is a positive choice for the planet: when we choose not to rip out and replace our 80s pine kitchen or even older bathroom suite, both of which are in perfectly good working order, it's a win for the planet. So we make a point of squeezing the last little bit of 'use' out of everything, and then replace with a second hand version.
On the subject of laundry, cleaning and hygiene products, I think there is a lot of performative cleanliness going on, and, as a PP said, people cleaning stuff for the sake of it. We say only 5 things go into the laundry basket after a single use: socks, knickers, flannels, anything with a stain that can't be spot-cleaned and the bastard compulsory branded polycotton school shirts our teen DC wear which reek at the end of the day, despite exemplary personal hygiene. Everything else is hung back up to be re-worn. We do 2 loads of laundry per week, 3 on alternate weeks to include towels and bedding.
Bar soap to replace pumps and bottles is such an easy win. Flannel washes instead of showers or baths, hair washing when actually needed. Teen DC still buy 'products' and toiletries such as make up and hair masques and I don't try to police that, I think it's part of growing up. They know it's not the 'gold standard' for environmental stewardship, but there is something to be said for exploring that dilemma and arriving at one's own conclusions.
We clean the house on a Saturday and use water, vinegar and washing up liquid. Rags made out of DCs old primary school polo shirts -they've probably lasted a decade, and were second hand to begin with.
We buy most things second hand, whether it's kitchen ware, our phones, clothing, instruments, tools, appliances, furniture, bedding: there is such a huge 'used' market for literally everything, there really is no need to buy new stuff. If I see something I like the look of or think we need, I have a hunt on Vinted, eBay or a local FB group and always manage to find either the very same item or a close match. As someone with 'expensive tastes', I'm able to wear the brands, cuts and fibres I love without the environmental impact.
Less for the win!