For our sanity, don't intermix the lab reports from another class in with holography. Leave the first few pages of the your lab notebook free for use as an index, and keep the index updated. Either purchase a lab notebook with pre-numbered pages, or number them just after you buy the book. Your lab notebook is primarily a tool for use in lab. Don't save up all your lab notes, produce an exquisitely neat report at home, and then throw away the notes.
Some people like to paste copies of their lab handout into their lab.
That's fine, as long as you paste neatly and securely. Don't forget to record information about the chemical processing used to make the holograms in each lab. If you have any other questions about lab notebooks, please ask your TA or one of the instructors.