I would use the time to simply reflect & muse on the (work or home life) issues of the day (daydream, even), something which is apparently quite important for a

I would use the time to simply reflect & muse on the (work or home life) issues of the day (daydream, even), something which is apparently quite important for any serious progress on any intellectual project. (See recent HN articles on same, e.g., http://news.ycombinator.com/item?id=605379 http://news.ycombinator.com/item?id=605379 .)