MUJI Writable Bookmark

When I read just about anything, but especially nonfiction, I am constantly stopping to look up something mentioned in the passage (maybe a person, a concept, a foreign word) or something else it made me think of/recall. Next thing I know I’m 5 layers deep down a rabbit hole and have abandoned my original reading material. The only way I can curb this is by having a bookmark I can write on, so that I can take note of whatever I want to do a deeper dive on without doing it in the moment. Until...