It hasn't really been discussed yet, but BEING MARRIED = MORE $$$ I'm not saying to get married just for the cash, do it because you're in love and all that too. Get married right after you get commissioned because if you are married, you get dislocation allowance for your initial PCS. I didn't know that until I got an extra chunk of cash deposited in my account from finance. I actually thought it was a mistake and tried to get them to take it back, but they said you get it if you have dependents.
"2" on what everyone else said. Being married is a blast, just make sure your prospective spouse knows what they're getting into. Some guys get their wives to help them study and all that, but for me the most helpful thing my wife did was just be understanding of the fact that for that year, I was going to be extremely busy and that there would be times when I would be at work for 12 hours, come home, eat a quick sandwich, shut myself up in the office and study for three hours, go to bed, wake up, and repeat for days on end.