I hate glue-bound notebooks, because the page I'm writing on pillows up a bit. It's a personal tic for me, but I want the page to lie perfectly flat so it doesn't give while I'm writing.

I finally found the perfect notebook. It's ring-bound, and you can add or remove pages from it easily. The paper is very smooth and heavy enough that you can use both sides without bleed-through. Even with a fountain pen.

So this is my shill post for the Aqua Drops notebook. It's awesome:

https://www.jetpens.com/Lihit-Lab-Aqua-Drops-Twist-Ring-Note...