That's why you do a "soft delete" and move things from your main area to out-of-sight closet/attic/storage unit. A cold storage, as the OP called it. Then clean it once a year (or when you need more space) and get rid of things you haven't used.

I regretted throwing out a thing like that maybe once.

Don't do it to "insurance" items like a fire extinguisher or a drain snake.

Now, what happened to me more often was: losing a thing, doing an extensive search for it, not finding it, buying a replacement, and then finding the original item the day after.