Yup. I taught myself another "new" (old) skill. And saved my favorite pair of wool boot socks. (Storebought, but much loved nonetheless.)
It's not the best job, but it's a far sight better than the threadbare and the huge hole. And I'll improve with practice. I went on to mend several small holes in my husband's favorite jeans. What a clever little trick--and I think that in many cases it's a lot better-looking than a patch.