What to put in a baby book?

In my baby book there is a section for each month for the first year, and it has things like, I learned this this month, I went here this month, I tried new food this month, and I sleep so long now... I really like doing it like that, it seems more organized, and I also make sure to include his milestones on that page too, then theres also a separate page for milestones and places for pictures of him doing those. I have an awesome baby book, and it doesn't miss anything else that I would like to include. Also another thing I would think about putting in there that I thought was neat in mine there is a page for the prices of stuff when my son was born, and top singers, who was the pres. etc... I thought that would be neat to look back on. You might want to include a section for the dad too, like what the dad thought what the dad said when your baby was born etc. Also including a pic of what you baby looked like at each month it was born is a good idea too.