What you own should justify the attention it consumes.

Attention is the scarcest thing you have, and every object you keep draws a little of it. Things you must think about, step around, maintain, insure, and decide about are spending a currency you cannot earn more of. The question is never only whether you like something, but whether it deserves the share of you it takes.

Go through one drawer or one shelf with that single question in mind. Not whether it is good, but whether it is worth the thinking. Most of what leaves will not be missed, and the room will feel quieter than the change would predict.