For me, writing thoughts down helps me to learn and remember what I am reading. So, for my daily devotions I purchased a Standard Diary, Daily Reminder for the year. All the dates are printed on the page, and there is plenty of room for notes. What I like about this diary is that it is hardback and bound. This way I can keep each year, and look back on my past thoughts.
In my diary I copy the 2 prayers in the Discovery devotional for that day, always writing it from my point of view. Then I answer or copy the application. I always do those 3 things. If there is a scripture in the daily reading I want to remember or makes an impression on my, I copy this down also. Of course, if I have any thoughts either from the reading, devotional, or just from my life at the moment, I record those too. Finally, at the bottom, I may write one sentence about the day. For example, "JP lost his first tooth"; or "We went on a field trip to a garden today." Little treasures I want to visit again!