I often wish I knew how to crochet.
Because then I could attach these lovely edgings to finished sewn objects.
Also I could tackle this, which I want to knit everytime I look at it:
It has a picot crocheted edging which I don't know how to do. The instructions say blithely, "crochet a picot edge, making buttonholes as you go".... er, how??
I do own two crochet hooks in different sizes, which I use for picking up dropped stitches, and, lately, for provisional cast-on.
Apparently provisional cast-on is a simple crocheted chain, so I suppose that is a beginning in crochet. Perhaps one day I'll get hold a some instructions for beginners, and have a proper go.
Meantime, repeat after me, "I must not start anything else before FINISHING something off existing list".