With the new cammies some things may have changed but...
1.take an extra set of boots with you if you can, inspection boots and uniforms that are only worn on saturdays. While I'm on the topic, I think about 4 pairs of boots if fine. Inspection set, day to day set, and two hiking/running boots. You could get away with 3 total but two makes you work alot harder since it seems that at least one pair is hanging outside, wet.
2.Get back early on sunday(1400 or so is fine or do it before you leave) and prep your stuff for the week. for us this included re-marking our sweats, pressing out the cammies for the week and polishing boots.
3.Stretch EVERY night before you fall asleep. This is the most important tip I have. Use the boards(you'll know what they are) to stretch your calf muscles as this will prevent shin splints. When I showed up to OCS I already had shin splints from my preparations, but they vanished within days of some serious stretches. but I know at least three guys from my platoon that were dropped for stress fractures from shin splints.
4. Remember your reputation starts now. Even though all you have to do at OCS is graduate(your performance at TBS is what really counts as far as initial promotion/augmentation) your peers will know who is a ****bag and who is not, especially for Charlie company OCC guys since you'll most likely go through TBS and the fleet(or flight school together) There is a guy we felt shouldn't have graduated with us (OCC 179 guys know who I'm talking about) and even though he went through TBS with another company when he showed up at flight school people wouldn't talk to him.
Good luck and semper fi.
airwinger,
VT9 Intermediate strike