If you don't do it in-between your other work you can avoid the cost of context switching. And consider that you spend a lot more time refining your ideas (whet

If you don't do it in-between your other work you can avoid the cost of context switching. And consider that you spend a lot more time refining your ideas (whether consciously or not), so I bet you'll be a lot more focussed during those 30 minute sprints than on average during your work days.