I darn nice socks. Others might get worn as 'work socks', turned around so that the hole in the heel is on top of the foot. Often under a thicker pair, so they don't show - not that that bothers me. I tend not to get holes in toes, but if I did, I might look at whether the sock could make a handwarmer. Else, yes, knot and stuff and it's a dog toy.