I'm trying to figure out where to keep notes that might need rearranging later. A bound notebook keeps everything in order without much setup, while a ring planner lets me move pages around, but also seems like more to manage. I haven't used a ring setup enough to know whether that flexibility would matter to me, or if I'd mostly want the simplicity of a notebook. For people who've used both, did you end up rearranging pages often?
You might not need rings if most of your notes stay in date order. A contents page in a notebook would probably do the job. I'd choose rings if there are particular reference pages you expect to keep moving around.