It's the class, I tell you. I can't leave the new class alone. I wake up every morning not with new writing but with new wording for the class.
Then I have to put my shiny new ideas into the class. Sometimes it's a minor change of wording and sometimes it's a new way of organizing the information.
I write it down.
Then I admire it.
Then I change it a little.
Then I admire it again.
After about two hours, I figure it's time to stop having fun and get to work.
Productive procrastination: it's like eating cookies without the calories.