Jackets with pockets that would accommodate these tools
“Roland Barthes spoke of his love of, his addiction almost, to note-taking. He had a system of notebooks and note cards, and Latinate names to designate different stages of note-taking: notula was the single word or two quickly recorded in a slim notebook; nota, the later and fuller transcription of this thought onto an index card. When away from his desk he used spring-activated ballpoint pens that required no fumbling with a cap, and wore jackets with pockets that would accommodate these tools.”
— Index Cards by Moyra Davey