Be fully prepared to explain this. FULLY. I said "I use my outlook calendar at work for appointments." Her reply "How? What does it look like?" I explained. Her reply "So what specifically does it look like?" I then went into details about what color tabs I use for what, and how I keep track of tasks versus appointments. - - - - - - - - - I've heard about people bringing in and showing things to the interviewer, although I remembered speaking to my admissions recruiter and telling her that I thought it was invasive and wanted to know if I would be penalized for not showing my personal calendar. Clearly - I was not! :)