"When preparing yourself for the beast that is the CPA Exam, there is so much to consider and prepare for that it can be easy to overlook the logistical details of what it will actually be like when you show up at the Prometric center on the day of your exam.
Understanding the entire process for when you arrive at the testing center will reduce stress and keep you focused on all the CPA Exam review you've spent hours studying. Having a panic attack right before you take the test because you forgot two forms of photo ID is not exactly the ideal way to start the testing process. (Obviously.)
Here are some extremely helpful tips from the folks at Prometric..."
Source: Roger CPA Review