I spent a lot of last week documenting my stash. I started with the worsted weight and found that it helped me get my head around the horror that is my yarn supply. I am not nearly done but I will be offering yarn for sale or trade on Ravelry. So, if you are in the United States, please take a look.
I did not do the sewing in the car.
In fact, I decided to crochet the swirls in place. Here is a detail....
The car knitting was working up the right front and some of the back. I eventually became annoyed with wrestling three balls of yarn that wanted to twist together and resorted to the scarf which was the back-up project.