I don't color code but should. The most important thing about the Passporter is always carry it!!! I know other advice is more important, but the PP has helped us decide on food places more then once. We use the maps a lot--maybe more then all the writing. And we love (ok I love) putting things in the envelopes to save for later!! I now write down what time we go on rides, so I can make a schedule later for the scrapbook.