Oh journal archeology. I like it. I have journals I use for work tasking or when I'm learning something new. I don't like spiral notebooks, I don't like the metal spirals so I've always used journals or composition books.
I found these sticky divider tabs that work great for using journals for tasking or notes. I label the tab and they just stick to the edge of the page so I can label each section. These are great for repurposing journals or adding something new without worry about what's already in there.