I only save strips at least 1 1/2" wide & 21/2" squares.I can pretty much tell by looking at a scrap if it's worth saving.Otherwise, out it goes.
DH is retired & we've already downsized...big time...2 diff times & now we're getting serious about getting rid of a whole lot of "stuff". If it hasn't been used, worn or needed in a yr...bye bye. Goes to a thrift store, or sold at a yd sale.
BIL used to rent space to store his collections.....& that made no sense to me. If you have more than your house will hold,why buy more?....be it sewing whatever, vases or guns.