I wrote This blog post a couple years ago about "40" things about me, and i made a layout about it so i can see the passage of time. i think it would be interesting to do something like this every couple years, and see the difference. Or maybe once every birthday would be a good idea too.
i printed off as many bullets on the sheet of paper that i could fit, and then printed the entire list and tucked it behind the layout with a little tab. which can be pulled out to read.