How many manufacturers are there of ring bound organisers? If you start with the obvious ones. Filofax, Franklin Covey, Day Timer, Sucess, Mulberry, but can you name the others?
To qualify they must have a ring system that allows you to remove the punched paper. Please include a website address of the ones you suggest in the comments.
But it's also a Friday so please feel free to discuss anything you like that is Filofax or ring bound planner related.