The Evening Review
Each night as you go to bed the hope is that you'll rest soundly in order to allow your body to do it's nighttime functions, many of which are restorative and necessary for good physical, mental, and emotional health. If you are unable to sleep, or if you have fitful dreams or spend a lot of time processing your day (above and beyond the brain's filing system) then you won't be reaping the many benefits of sleep.
Starting off your evening with a mental review of your day and a little bit of re-writing can help you to relax, achieve closure with your day and get yourself off to a great start sleep-wise. Here's how you do that: mentally run through your day, looking at everything you did, and then think about the ways in which you wish things had gone differently. Re-write the day in your head, energetically correcting, if you will. While you will accurately recollect the day as it happened, you will also have already spend the time working out what did happen, and what you would have desired to have happen. This eliminates a lot of the processing work that can keep you up at night and that fills your dreams with mental business.