Writing in the head can be quite a task.
I spent the whole day on my feet today, doing simultaneous technical interpretation. At a training. At a cigarette factory.
On one hand there was the noise above which everyone, including me, had to shout. Also the foreign words thrown at my poor brain, which sent it juggling and scrambling for equivalent English words.
But on the other hand, a part of me kept writing the story of a chain smoker, working at a cigarette factory, trying to quit.
Sometimes, living and writing in the head is the only way to make a long day go quicker. Now, off to bed, and write in my dreams.