I worked one heel last night. I couldn't find the sock yarn left overs, but I could find a bag with 2 full skeins of black yarn and two partial skeins. Those partial skeins were destined for the leftover box anyway so there you have it. A nice solid, yarn held double and knit very firmly, new heel. This one is going to a last little while longer than the first.
It isn't much for knitting for a day, but it is a beginning and really, beginnings shouldn't be big. They should just be.