I turned 40 last year, and it triggered a huge urge to declutter my home from then on, which is very unlike me as a self-confessed collector of things...
I didn't want to suddenly (and miraculously) become a minimalist. There's no way that would ever happen because I love home decor too much, and I still want my home to feel full of personality. I just started to look around at the things I'd been holding on to for years and wondered why I still had them.