I don't think I did a very good job of picking it up, so I dropped another and let it run. Fixing it went better the second time.
Next I decided to try knitting different yarns from my tiny stash, only to discover that moths had gotten to it! This is all I could get out of the ball of gray yarn.
Isn't it pretty? And it looks just like "real" knitting. And finally I tried some slightly nubby tweed stuff (the actual color is a dark olive).
Sis has offered to put together a yarn package for me to play with, until I'm confident enough to start a real sweater. Which should be soon.
In the meantime, I have no place to sew. I'm thinking of moving the knitting machine to the top of the old ironing board, since it's easier to use while standing.