One reason to make a pamphlet is that you've got all of these papers you have painted, or made on the Gelli Plate, and now what are you supposed to do with them.
This is a classic answer. You make a journal out of them.
A second reason is that you need a place to experiment where the materials are cheap, not precious. And my two "real" art journals are made out of good paper. So I've got a second classic answer.
The journal with the yellow cover is out of paper I painted very early in my journey and that was always intended for a hand made journal. There are a total of 4 sheets, or 8 pages, or 16 surfaces in that one. Some are painted, some have just gesso on them, and some are actually bare paper.
The red and blue one is just binder clipped together right now. I have not sewn it yet.
I also tried my new Inktense pencils. They are the dark black lines. And pulled out my GelSticks and got a wash out of them with water after I colored. So I've successfully used two new media that I have bought and not used much yet. Havi9ng a place to experiment works.
I'm not sure what will go into the Yellow Journal, but I'll figure it out.
Take care all.