What I'm doing:
Spending insane amounts of time working on my online course for this summer. Because I like to tailor the material to the students in the class as far as is feasible, the process of working on it takes forever: a few hours (at least two hours) for one discussion board assignment, for example. I know it's ridiculous, but that doesn't mean I can stop working on it.
What I'm not doing: working on a paper for the conference in a few weeks.