Okay. There is a decided advantage to never throwing anything away.
Of course, you have to be able to find what you've stashed!
This afternoon I just had to make a couple of bendy dolls. Several years ago I made dozens of these little dolls from Salley Mavor's Felt Wee Folk book. Instead of using embroidery floss, I remembered I had a stash of Persian style crewel yarn in a gazillion different colors. This almost got tossed when cleaning up my workroom a few weeks ago, but I just couldn't trash all those beautiful skeins, even though I had no idea what I might use them for.
Well, they work GREAT for wrapping the pipecleaners, and making the hair :-)
These little dolls are 2 1/2 inches tall, and require just one 12 inch pipecleaner to make them. The doll on the left has a 20mm diameter head, and the one on the right a 16mm diameter head. They have acorn caps that I've had for over 10 years, just waiting to be used again :-)
So remember...don't throw that out!