That's very kind of you artemis but if you saw my house you wouldn't consider me a pro... I don't think a stranger would think it minimalist. Having said that, a lot of friends have commented on how spacious it feels since I started the Big Cull. It really is a massive house - much bigger than anything I've ever lived in before - and when we move at some point I just don't want to be carting anything unnecessary with us. (We're renting so it won't be a permanent arrangement).
I want to be much much much more ruthless as time goes on but I share a house with someone who wants to hang on to some stuff. (I related the tale early in the year: Sport is still technically my dh but we're separated under same roof, living companionably and very amicably. We want to raise the dc together and will be setting up a 'birds' nest' arrangement next year where the kids stay in the family home & the adults rent a studio flat where each parent can go separately for separate time. In an ideal world I'd have my own truly minimalist little studio and an allotment, but that's not practical for now... We're not doing a 50/50 custody split or anything because we don't see the need, but we need to make sure we each get time away to be truly separate). I tell you this because it's weird about the Stuff. On one level we operate as separate entities, but a lot of our stuff is jointly owned because we've been together our whole adult lives. Sport has been very understanding about my desire to get rid of stuff. But there are places where we suddenly & dramatically differ and it's weird because there's usually so little conflict in our relationship, e.g. I don't see the need to have 2 glass trifle bowls (for our one annual Christmas trifle!) but Sport does. He doesn't even eat trifle. But given how accommodating he's been, I really should lighten up.
Anyway, I'm not really answering artemis's question. I think it is cumulative because it becomes about more than the objects alone. The minimalist intention makes me 'see' things differently: is this physical object useful or beautiful? Does its use or beauty outweigh what it costs me to have it in my life? eg we were given a truly beautiful but absolutely enormous fruit bowl years ago. We didn't have room for it then and if we had it now it would just be a huge thing to dust. And we keep most of our fruit in the fridge anyway. .
Does my late night essay make sense? (Late night for me. Knackered).