Oh yeah - your money list.
In BMT, you must keep track of every bill you have, by serial number.
If you have a debit card, you might want to get rid of the few small bills you have once you arrive at your destination airport. You won't have much chance to spend them for the first 2-3 weeks, minimum. I was fortunate enough to have a buddy at home send me 5 $1's once we got to the last few weeks of BMT, and got a few patio breaks.
(Your first soda in a month is better than crack. Trust me on this)
What else....if you're a smoker, start trying to quit. At least reduce the amount you smoke.
If you're a heavy drinker, start weaning down. You don't want DT's in basic.
Also, don't drink heavily the night before you leave. It's bad enough saying goodbye to everyone you know [if you're close]. A hangover and all that goes with it doesn't help.
If you've got some free time between now and your departure, start learning the rank insignia for the Air Force. It's also a good thing to know the other branches, but you won't need that until tech school, at the earliest.
If you have a girlfriend, make sure she understands you're gone for a while, and there isn't wiggle room with this. We had one dope who thought he'd be able to call her whenever he wanted to.
Once you have base liberty, or can get to the library, you will have computer access again. Cyberzone terminals aren't really cheap ($.07 - .11 per minute) but no one really cares there. Depending upon what squadron you get, you may be close to the main BMT shop, or one of the satellite shopettes. If a satellite, so much the better for you, you'll have a decent chance of grabing a computer, and reading the threads here wishing you well.
If it sucks, remember that it ends quickly. If you're having fun, good. Remember who you're there with.