Gustave Flaubert, Letter to Gertrude Tennant (December 25, 1876)
And the flipside of course: pity on the extravagant, wild, dress up and party lifestyle: a way to comfort yourself if you don't have anything deeply rewarding to do.
He starts out rowing whenever he feels like it, sometimes rowing to the excess of 16 hours in a single day.
So Amyr adopts a regular "work" schedule, rowing at most 8 hours a day, but allowing 2 extra hours whenever he feels energetic and motivated.
He then becomes so productive that he's able to cut 40 days from his initial schedule (it took him 100 days as opposed to 140 days to cross from Africa to South America).
Edit: link to the book
[1] http://www.amazon.com/100-Days-Between-Sea-Sky/dp/0747549478
A business, at its core, is made up of a people. Well defined processes are the equivalent of habits for a business - common practices where the expected behavior is straightforward enough that the company doesn't have to think very much. This, as you say, frees you up to be an active thinker on many other topics.