Buy the sheet music you want to play. You can make an online account at musicnotes.com and get an APP for your device. You can read purchased music right off the device or choose to print out physical copies. The Salt Lake City library has loads of great guitar books to find your favorite songs! You can also visit a local music store to purchase books.
Have a physical tuner and metronome ready to go (or opened up on a device if you are using a YouTube metronome) for the lesson. Below are two local options for purchasing these items. These shops will have all the other guitar related items as well.
Guitar is tuned Guitar is out of the case Picks and capos ready pencils and erasers ready Clean area for lesson to take place Device (laptop, iPad) is fully charged Lesson material is printed out Lesson material is on the music stand Student is warmed up Student has a list of questions to ask the instructor Student has links or sheets pertaining to song they are interested in, ready to go Student has Practice Log filled out so the instructor can see what was practiced