It can be useful to keep a notebook to jot down notes while sitting or to write in after sitting. If you sit in the same place each time, you can keep the notebook there. If you sit in different places wherever or whenever you can, then keep your notebook with you in a bag or backpack. You can write down the thoughts that come to you, the insights you have. You can also draw. Writing when your mind is clear after sitting can be very satisfying. You don’t need to read it right away. Perhaps leave it for a while, so you can continue to reflect without judgment.