Keeping a research notebook is an evolutionary process. Technologies change, our habits change, external conditions change. 

Share some reflections on what worked and didn't based on your initial notebook format or structure. For example, you may have started with a single notebook and resolved to keep everything in one place, and then realized that actually, it was more important to be able to use whatever tool is on hand to capture ideas quickly. Perhaps you have several notebooks, or perhaps you have (or need) a process for managing disparate locations and solutions. 

Feel free to ask questions, post tips and solutions. Come back here after a day, a month, or a year, and see what has changed!