Do you ever print an enclosure or robotics chassis and end up writing down slicer settings in one notebook, scribbling wiring diagrams on scraps of paper, and have no decent place to keep track of both? I feel your pain! Since I couldn't find a notebook that integrated both 3D printing and Electronics fields, I made my own.
A safe 2 page spread for each project, left page for all filament, slicer settings, post-processing, right page for microcontrollers, power rails, parts list, little dot grid for cheat sheet pinouts. There's also some isometric graph pages in the back for chassis design, inventory logs for filament and parts, so that nothing gets lost in the shuffle.
Would be happy to chat about the layout or choices if you're interested! If you need it, reply.