Pay close attention to the deadlines for the various forms and information requested...yes, there are more.
Be prepared to visit the doctor for immunizations that are required.
And, as many parents have said, signing the form that says you will accept the remains of your child should something happen...this is typically an eye-opener for non-military families and brings a sense of reality to what their DD/DS is joining - not just going to college.
The funny part of that is we were so busy getting through the paperwork we didn't even notice it at the time. Only later when reading posts did I realize I had signed it.
The information is when it all hits home. You are given a reporting date and time, more forms (to prepare you for things to come), items to bring, travel information, pay information, and more things to do within specific time periods before I Day.
Guess they aren't happening today....unless they decide to pull the stunt they did with my "we received your acceptance of appointment/congrats!" letter on my portal, which they put onto my portal at 2:30am