When on sabbatical, I often find that I spend way more time noodling around in my sketchbook (and doing other making- and relaxing-related things) than other forms of art.
With more time allotted for free play, the sketchbook becomes less predictable and methodical. In contrast to my previous pages (limited in scope because of my tools & time in my everyday life), there's far more mixed-media experimentation and play happening on these pages.
I watched myself use my sketchbook differently while on sabbatical; instead of functioning as a tidbit of creative play, I used it to test new ideas for larger works. I'd like to inject more of that into my everyday practice, or at least figure out a way to incorporate the paper-thinking process more intentionally into my overall approach to artmaking.