When I'm in my car (or out and about), I have all these thoughts in my head - "spilt milk" to complain about - and when I sit down at the ole laptop: nuthin.
I mean, I write the best stuff when I'm not actually in front of the computer to write it. Readable stuff, I tell you.
And coming back to it in my mind later... It just isn't the same. It's like old news to me, and I don't want to revisit.
I need to not think during the day (or whenever I'm sans laptop).