Thanks for this, David.
I am settling on using my Mindmanager app. at the office and home to sort out my next actions list which I can print and take away with me. I capture any new items onto small post-its, which I can then sort into my travelling context and projects lists in my A5 Filofax. I replaced my diary with a day per page to enable me to list appointments and actions on view in the same page. Early days, though.