Notes that travel...

Have a notes section that can apply to any project. Allow the notes to be individually linked to a project/series. Open from within a project or even at the HOME section. Group notes to link the ‘Notepad’

Even better if you can allow the notes to include graphics. Say I find a suit of armor that I like and want to see it, then I can click on the notes - find the card with that suit of armor and pull it up. Or even have AI describe the suit and keep that as a note card.