Here’s a fun Moleskine hack I found on Flickr, taking the pages out of a planner and using the cover to hold 3 cahiers.

I’ve been wanting to try something similar myself, but with the cahiers somehow bound to the cover rather than remaining loose when the elastic is opened. Haven’t quite figured out how yet… and I also haven’t yet steeled myself for the emotional pain of having to do surgery on a notebook– it’s always nerve-wracking!