With so much note taking apps nowadays, I can't understand why does anyone still write notes with pen and paper. You need to bring the notepad, book or that paper to retrieve that information, and most of the time you don't have it in hand. While my phone almost always reachable and you carry when you go out. For those still like to do handwriting, there's many app does that and they can even convert it to text notes.
So, if you still write notes with pen and paper, why?
Unfortunately nobody makes a cheap spiral bound, square ruled notebook. Certainly not one which stands up to 0.5mm pencils well.
I spent the money on the Leuchtturm 1917 notebooks after trying to make moleskines work. I do not regret it, nor the work that brought me there.
I’m left handed so spiral bound is out for the most part