The Large Flat rate boxes that are Stamped for the Military cost $17.40 to ship to most locations. You can get the boxes for free from USPS.com. More details at: https://www.usps.com/ship/priority-mail.htm
do you know where the Sailors get picked up after they move over to A school? What gate? and what gait do you drop them off at after liberty?
Smoothsailing, It will be all be posted in your PIR group in a couple days. There will be a map of TSC gates, and info for you about after PIR.
If you can plan to go to Sarge's Meet and Greet!! They will have the latest info on where to go to pick up Sailors staying in GL for A School. You may also want to go to the GL A school page since some of the info differs depending on if they stay in GL or ship out for A school training.
It is a good idea to write to your sailor or tell them in the I'm a Sailor Phone call Where and How you will meet (I'll stay in the Stands and you come to me or You stay as close to where you were in Formation and I'll find you! or We'll meet at.... (watch the videos and You'll have an idea!)) Even if they have to go deal with paperwork they are given a few minutes to communicate that to their loved ones in the stands they just need to keep it brief. They may not realize this so make sure you communicate it to them. Quick hugs and make a follow up plan then send them off. (Should not take more than 10 minutes total and they should be ok with the command. It's the same for Sailors staying in GL-- Quick hugs then muster for the move.)
Sarge's Meet and Greet is held the night before graduation. There should be info on Your PIR group page on Here or on the FB PIR page. We couldn't get a flight that got us into town in time so I was unable to go to ours. It is a chance to connect with other parents in person. You can google it to get more information. Hopefully someone can point you to your groups page.