If you’re taking any prescription medication, bring it with you. Nothing can ruin your chances (as well as others in the room) of succeeding on the CISSP exam like a medical emergency! Also, consider bringing some basic over-the-counter meds such as acetaminophen or antacids to eliminate any annoying inconveniences such as headaches, heartburn, or a gastrointestinal malady. A box of tissues might also be appropriate - if you have a cold or feel like crying when you see the exam!