I went to OCS 3 years ago and I imagine it hasn't changed much. As far as all that gear they told you, forget the 2 pair of running shoes. You only need one. After week 4 or 5 you run in boots pretty much the rest of the time. Bring a back up set of civilian gear just so you don't have to wear the same crap every libo. You don't need 450$, I brought 200, I think but I also had my utilities and boots already. Can't remember how you pay on the initial gear issue, so if you're worried about it bring it. Don't worry about the watch. You can't wear it anyway and they take it from you. Only when you have a billet can you wear the damn thing. If you want to bring it that bad get a cheap one. They "give" you everything else you need on gear issue which happens pretty quick. Label everything, like someone posted before, and keep it organized. Pays dividends on pick up, trust me. That's about it. Key to OCS is don't be a dumbass or asshole and do as your told. Swallow the pride when someone your age is telling you what to do and do it even if they are jacked up. On a personal note, talk to the men on here with the respect they deserve, they are Marines, you aren't. Good luck and don't be "that guy."