I'd like a way to take notes inside the game UI (not counting paper and quill), like having a notepad where you can just type whatever you want to remember later.
just to be a devil's advocate, but isn't that what the 'penpersonship' ability offers?
Do we really need a notepad programmed into the interface for a browser based game? How about the ability to make a notepad out of multiple pieces of Paper instead for writing longer (or unlimited) notes?
I think taking random notes outside of the play might break the experience... Your character is horribly illiterate and yet here you are writing down a comprehensive grocery list. But a sort of notepad recipe or even a notebook, like Jackie's suggesting, does actually sound pretty cool.