My mother, son and his G/F are flying down to Disney,..the rest of us will have already left a good 5 days before ( we are staying with friends for a few days in GA). I paid for early bird check in for all 3 of them both ways. what is the procedure for them to print their boarding passes? Just log in fill in confirmation #and name and go? I just want to be sure I can give my 17 year old precise instructions since I won't be around to help should they need it!