Also, I think it will be great for him to see when he was older what he did and when

That's why I started a diary when I was pregnant. I wanted our son to have highlights of what he did and when, too. It just turned out to be stuffed with more than, "Today ds learned to brush his teeth."
The mazes were suggested to me by an educator to help ds with his pencil control. His handwriting has improved, but he still refuses to print in lowercase letters. *sigh* Good thing he's not online-every sentence would be a SHOUT!