Repairing vintage clothing for Basya Berkman Vintage for these last few years has lead me to learn about all sorts of clothing construction techniques that I've never had to use before.
My mentors have been the generous folks who post how-to's on the internet. I have learned how to mend holes in sweaters, so far just with bulky knits. I have learned how to make swing tacks. And just recently I learned how to sew a hand-rolled hem. Let me tell you, I am now addicted to hand-rolled hems. They are nearly magical! I honestly was grinning the whole time.