I'm curious about what format everyone uses as their lab books and, more specifically, if anyone has found or managed a good electronic format. Previously I've used an adapted LaTeX class called LabBook. It's convenient because I know TeX better than any other math typesetting system. However, I know that in many lab settings it's important to use paper based lab books with pre-numbered, non-removable pages to ensure data isn't altered or removed, which isn't really a possibility with the LabBook class. From what I've seen, it seems this data altering fear was made into a bigger deal in fields like chemistry and biology than it was in physics, so I guess I'm also interested in seeing how often other physicists felt compelled/were required to follow strict lab book practices.