I had some odd bits of superwash left over from making crazy batts. Not enough individually to do anything with, but collectively I had about four ounces. So I divided each color into three equal piles and put each pile into a sandwich baggie.
Pulling random colors of roving from the bag, I spun each bag onto a bobbin,
and then plied them all together as a 3-ply sock yarn. Unfortunately, plying with the wheel doesn't allow me to put as much twist into it as I do with a spindle, so the final yarn may not be suitable for socks.
I'm not sure what my total yardage was because it wouldn't all fit on my niddy-noddy. (Arguably a very good problem to have!)
I also had a bump of roving I hand-dyed either in San Francisco or shortly after we moved from there. (It's been a bit since I went on an all-out dyeing binge!)