Years ago there was such a thing as darning thread - it was soft and pliable, and unless the darner did a bad job - it was not a lump to feel when you wore it... I wish I could find that thread again - plain thread is a bit too coarse. Embroidery thread would not hold up - and yarn is too bulky - so is there still a source for darning thread - it came on a ball. Wish I had my grandmother's stash that I can bet got burned or thrown out - but that too would eventually be used up - just have not found the source to get more of it. I'd love to save some of the expensive socks my dh wears out - he has one bad foot from cancer surgery and he wears the socks out so easily, as he walks crooked with his foot - but the socks are of the thick and absorbent kind to keep the foot healthy - so like to save them as much as possible. any ideas?