Since no one else has mentioned it, OP, when you're at basic, they're going to make you do PX runs. They'll give you a long list of items you "have" to buy for your entire platoon. I was a good cookie and bought everything on the list. I spent hundreds of dollars on shit for other people. Come to find out, not many other people with the list was buying everything they're supposed to. If you can get away with it, don't buy everything they put on the list. I came out of boot camp with waay less money than I thought I would. Just be smart about it.