I noticed that I have a lot of unused sketchbooks lying around so set up a challenge for myself to actually use them. This is a bit difficult for me, since I don't really feel comfortable just doodling around. I usually need a rather clear mental image of what I want to draw before starting. So this challenge is actually also a learning opportunity for me. I want to (re)learn how to doodle.
One of the recent doodles I liked so much I actually remade it properly and made this drawing out of it. It's far from perfect, but I still like the result.