My parents were depression era, I was brought up “Use it up, wear it out, make it do, or do without”. I grew up saving things in case we could use it later. We always had plenty of room to store stuff. Often a project started with a conception, then a walk around to see what we had to do a prototype, then a (sometimes crude) model/first cut, then a final.
Still do.
My wife's parents and relatives were the same way.
Consequently we have (conservative estimate) one or two 40' shipping containers (PACKED) of "stuff". We've told our children - if we are dead we won't care, if you don't want it toss it, we are leaving them plenty of money and real estate.
But as long as we have plenty of space and are alive don't.