I spun two bobbins of single ply but I was afraid to ply them together. Adam harassed me until I got out the wheel again and plyed them (and plyed them and plyed them). Then I spun some more from the roving Mom gave me, which was easier than the roving that came with the wheel. I plyed that with more of the first batch, and so on, until I had five finished skeins of yarn. It's very bulky and uneven, obviously, as it's my first, but I'll do more for sure and it will gradually get better.
I have a tremendous feeling of accomplishment!