He's got a large project management journal that includes, among other things, a host of questions about his client's needs and equipment. Naturally, these questions appear in the Tinderbox -- and, naturally, the titles are questions.
Garbutt simply makes an agent that looks for notes those name contains a question mark '?', and sorts those notes in outline order. The result: a handy, up-to-date list of all the questions he might need to ask a new client before getting down to work.