The CCIE lab exam tests not only your practical and theoretical knowledge but also your ability to use that knowledge under pressure. You are in for an intense two days, so do not add unnecessarily to that pressure.
Be aware that most people fail the CCIE exam on their first try. Have a contingency plan for taking the exam a second time. This strategy can help you stay calm during your first try and may make your contingency plan unnecessary.
Arrange your travel plans so that you arrive in plenty of time the day before the exam. Arrange to leave the day after the exam, not the same evening. You don't want to think about your travel schedule during the exam.
Locate the test facilities the evening before the exam. You don't want to show ...