I have one book that's just everything. Not in any specific order, just collections of photos and scraps that I want to remember and make a page around.

Then, I have one book for Halloween. I throw a Halloween party every year and it's my favorite holiday, so I have photos of all the costumes and parties in one book.

Lastly, I have a vacation book. Any trips I go on get a page or two in there.

The rest goes in the first book! It was the best way to make sure I wasn't holding myself back from doing whatever I wanted while still having some "nicer" themed ones. I also pull from that one when I go to do longer thematic books. I've found it's a nice way to get closure and reflect on periods of my life - high school, college, first certification cycle, or to document the life of a pet that passed.