Karen Barbé - Creative Mending – Part 1 - tutorial on how to make patterned patches meant for mending but can be used in many ways to embellish
British Government's leaflets advising women (of course then men didn't do any household chores!) how to make new clothes last longer. On the bottom left they recommend sewing a patch of fabric on the back of short trousers and pants (underwear). On the right they suggest knitting socks with double yarn on toes and heels where they are more likely to wear into holes. Alternatively, darn these areas before new sock are worn.