Three folds and a blue thread.
From the kitchen table
The latest pocket notebook began with a grocery bag that had carried apples home in the rain. One corner was marked, but the center panel was sound. I cut the cover from that plain section and kept a narrow strip of the darker crease along the spine. It looked intentional only after I stopped trying to hide it.
For the inside, I folded six sheets of cream writing paper together. That is enough for a week of short notes without making a bulky little book. I pressed the fold with the back of a spoon, checked that the pages sat comfortably inside the cover, and trimmed the open edge a little at a time.
Three holes and a length of blue thread held everything together. My first knot landed on the outside, exactly where I did not want it. I unpicked the stitch and tried again. Leaving the tail slightly longer made the second attempt easier, and the bright thread helped me see the path through the holes.
After a week in my jacket, the cover had softened and the corners had turned. The notebook now contains a soup idea, a list of library books, and a diagram of a window latch I need to measure. None of that is precious. That is why this particular scrap of paper has earned its place in my pocket.