What should I write for my scrapbook's first page? Last page?

The 1st page should include a title like "_____'s Scrapbook" and I'd add the date you started it. You could also add a little intro giving details of what the book will be filled with, but I'd just have the 1st two things I mentioned. The last page should have the date you finished the book, and a quote about memories or something like "Memories last a lifetime". You could also include 2-3 small pictures that are your favorite.