This is the big brother.....

of my sock yarn blanket. Instead of sock yarn I use worsted weight yarn, which of course makes the squares significantly bigger. Since I have a hard time to throw yarn away I keep all the bits and pieces even if they are very short. Look at the yellow/orange square on the bottom left. It has a tiny green tip, made from a little Noro scrap. Picturing Noro in the trash bin was just too much for me...... I agree, knitters can get very strange and protective about their yarn.