Actually, I wrote it up here, and then cut and pasted on a word document. It may have pressed “send post” first, hoping it was good and taking into account that I could edit afterwards.
It’s much easier to do it that way.
Once you’ve done it one or two times, you get an idea of what the appropriate length is. I was clueless before I started, but now that I did it a couple of times, I feel more clueful.