Your way of working sounds wonderful, but I find that I would probably struggle with this part. How are you able to define the end of your day and ensure you have such time marked off? I have tried this but always end up getting sucked into endless other issues/problems/etc and basically passing out at some point, only to wake up the next day to dive right in -- no time to be able to do that sort of retrospective note-munging...
(this is not exclusive to trying to find retrospective time; it applies to things like finding time for food/dinner, blocking out vacation time, or other things, too. work never ends!!)