Today I started using a birthday gift I bought myself. It's a journal from Ex Libris Anonymous. They make journals from old books by taking the front and back covers and some of the pages inside, then inserting good quality paper, and finishing it off with a spiral binder. Their site has many cool examples of their work.
I always carry a notebook or legal pad around work, but most are kind of boring and have crappy paper. This one is very cool and bound to attract a lot attention. Oh Yeah, my journal is a green textbook entitled, Essentials of Pyschological Testing, 2nd edition, by Cronbach. It appears to be the 1960 edition.