3-ring binders on airplanes

I'm going to have a lot of airplane time coming up. Ideally, I'd like to use that time to continue editing my WIP novel. However, I like to edit this stage of rough draft with pen and paper (see my previous post, "A stupid (but effective) trick to improve the editing experience" ). An airplane fold-down tray is WAY less than ideal for an open 3-ring binder.

Suggestions? I could fold it back on itself so it lies flat, but that makes turning pages a pain.

||| Comments are welcome |||
Help keep the words flowing.
Landless by Tony Noland. If you like the blog, try one of the books.