I take this type of mindless knitting on any car trip where I will be a passenger. I take it along when there is a chance that I will be stuck in a waiting room, or in a long boring meeting. I also use the ongoing sock project to keep my hands busy when I'm visiting.....more productive than fidgeting!
I cast on this pair of socks on World Wide Knit In Public Day and then barely touched them again until our road trip to Prince George. I finished the Peasant Heel of the second sock last night, the final step in finishing up the pair. As relieved as I was to have them finally completed......
....I immediately cast on for the next pair.