The “need” to fill every. single. cupboard to its maximum capacity. Everytime. Stuff on top of stuff, so accessing anything becomes a jenga challenge. And reloading the cupboard like a game of bucking bronco.
Oh yes! Especially the cupboard which has jam jars stacked on top of condiment jars and sauce bottles of every description jammed into every available space, most of which are never used but apparently can’t be thrown out. Guaranteed just opening it to retrieve the brown sauce will result in a ten year old jar of organic artisan marmalade braining me or smashing spectacularly on the counter top or floor!
An inability to avoid populating every flat surface in the house with ‘stuff’. Plant pots, picture frames, chintzy bits of tat, ornaments, whatever! I am very definitely a minimalist at heart and my OH is the polar opposite. I conceded on this point early in our relationship and mostly I have learned to be zen about it, but every now and then I lose it when merely walking past a bookcase results in things falling over.