Something I would find very useful is a notepad rather than the "carnet de croquis" (I don't know how it's called in the english version : sketchbook ?). I tried to use it to note some titles I wanted to explore further when back at home, not having access to internet from my office. It was painful, letters where very huge, I obtained an image with at most 4 words, not well "inked" and finalement I had to make a memo on my phone
