The index is important and just figuring out what you need out of it. I basically use it mostly as a rapid journal - which doubles as a simplified time sheet. I really like the flexiblity. Some days I use three lines other days, I might fill up half a page. When we were touring wineries last spring I wrote my impressions of every winery and when dh asks me a question about one them, I can just look it up. I’ve never been one to keep a journal, but this is so minimal it works for me.