My carry-everywhere notebooks are Moleskines, mostly because I have a ton of them I got for a song on a good sale a while back. When that stash runs out I'll l

My carry-everywhere notebooks are Moleskines, mostly because I have a ton of them I got for a song on a good sale a while back. When that stash runs out I'll look for something with an equally-or-more indestructible cover and better paper inside. At my desk, I have a pretty extensive collection of papers, but my go-to for quick brainstorming or hashing things out is a couple of Arc notebooks (Staples' in-house brand). It's easy to move the pages around, and the paper is very fountain-pen-friendly.