I've just realised that I cook like programmer (or program like a cook). I take a recipe, then cook it multiple times changing different variables (iterating) until I'm satisfied with the results (shipping). The best thing isn't the food, but that you shipped something in a few days ;)
I keep a cooking journal where I write down the effects of a particular iteration, but I don't do the same for programming. I think I might start doing similar for programming excercises.
I'll keep a log and have a series of "recipes" that I iterate on and record the results. It should be both fun and help increase my skill set.