Left: Waiting room sketch on 4 x 6 inch (or so) piece of yellow Tiziano. The lavender/purple paper next to it is part of what I used to stick the piece into my larger journal at home. I worked with a rather dry .1 Staedtler Pigment Liner.
I haven't been able to carry my journal around with me for quite some time (shoulder injuries) but I always have some rectangles of paper suitable for drawing in a small bag with me. I journal on these pieces and stick them in a larger journal when I return home.
It's satisfying because I'm not letting the injuries stop me from doing what I love.
Life is full of work-arounds and we have to do our best to find them.