Mode B is work! Personally, I carry a moleskin notebook and mostly think and jot down notes as I go. When I'm back at my desk, I can switch into mode A and be

Mode B is work! Personally, I carry a moleskin notebook and mostly think and jot down notes as I go. When I'm back at my desk, I can switch into mode A and be far more productive. All the planning, design has been done. If you are into bulk writing, then I'd pick a twiddler and text to speech rather than a heads-up-display.