Our friends at Enterprise have such good advice! Read this article to learn about what you need to bring to every interview. The article mentions to bring your phone in case you get lost, hit traffic, or need directions. While I agree with that, you also need to be very careful with your phone during the interviews. Definitely make sure the ringer is off; not on vibrate and do not check your phone during the interviews because you will make the interviewer feel like you have somewhere better to be.
9 Essentials You Might Need for an Interview