[jws]

Interruptions = Bugs

I wonder if you might be more productive by changing your habits. Get up and hack for two hours before going to a job that does not require creativity, then perhaps hack a bit more in the evening as life permits. The advantage here is that you will have plenty of thinking time between execution periods and it will support the quality of your work.

I know an author that does just this, his problem though is that he is too conscientious and competent and keeps getting promoted to positions that require too much creativity. At that point he has to change jobs.