I second this recommendation with a suggestion that has hugely helped me. I have more or less copied the approach to to-do lists described in that book into a Trello board and then – importantly – made it my home page on Chrome.

This accomplishes two things for me: 1) any time I open a new tab, I get a reminder of what needs to be done 2) adding an item or recording an idea to be processed later is just a cmd-t away.

This approach (combined with the Trello mobile app) has made the list so easy to maintain it's almost hard not to use it. YMMV, of course.