Playing the MYST series of games, manual note taking is an absolute must. Keeping a handwritten journal, utterly essential.
As a consequence of that, I have a bottle of Monteverde USA blue ink for the dip type pen from the MYST 25th anniversary Kickstarter, and a Daiso cartridge fountain pen using brown Pelikan ink cartridges.
And the journal itself? The ultra sized journals from the Paperblanks
Old Leather Classics collection.
edit: fix typo, something somewhat more difficult to do with pen and ink and paper.