Use your planner like a diary. At the end of the week, write down important things that happened over the past seven days. The point is not to make a detailed entry or even an entry every day, but rather to keep a record with a few key words. For example, "made offer on house today," "had impromptu after-work drinks with friends," "tried new Mexican restaurant," "planted vegetable garden," etc. You will be amazed and thankful when you look back over your year!