A daybook, you might be wondering, is a notebook you carry with you everyday. Everything goes in it- lists, projects, ideas, research, resources, diagrams, contacts- everything. You date the first entry. You date every entry after that. You number the pages and don’t tear any out.
When it’s done, you write the start and end dates on the spine, and file it in the archive. If you’re really good, you index it first, or at least tag the most relevant/important ideas and projects that come out of it.
The daybook becomes an extension of your brain. It allows you to always have someplace to capture your ideas- however small- and be able to get back to them.
It allows you to get back to good ideas that happen at the wrong time.