I really didn't think that much about it until I read an article in a recent knitting magazine about a person who collected (so to speak) other's yarn leftovers. I've given mine to my sister on occasion, not really having a plan for the leftovers. Now I'm wondering, is there a skein out there just for me to finish this project, or two or three in a bag in a closet - a project that never got started?
Recycle your yarn, find a Senior Center, Women's Shelter, Craft Group, H.S. club, etc to donate the stuff to. If you see yarn at a yard sale, get it and donate it, or find a way to trade it. I did a search on-line and there are hundreds of ideas about how to recycle it. I just hate to see yarn go to waste.
I have some sweet unfinished projects of Flo's, my mother-in-law who passed last July, and I've left the crochet needle in one of the items, and displayed the unfinished work in my china cabinet. She's a treasured friend, and I really miss her our first Easter without her. So - one's unfinished project is another's treasure!! No Doubt!!