I saw at least a half-dozen habits that have cost me I-don't-want-to-think-how-much time. And at least a half dozen I'm still doing. I was dimly aware of them as repeated frustrations, but identifying them makes it a lot easier to target them for deletion.

I'm going to mark this thing up, add "haven't crossed any of these off in the past year", and postpone my judgment until next fall.