I carry the black version with me everywhere I go, got it a bit before I went to OSUT.
Poor little thing seems to be getting a little worse for wear now, but there's some interesting things in there.
Looks like I didn't really fill it with any real rhyme or reason, but I've got important addresses in the front, the lyrics to a few of my favorite hymns and songs, a list of all the songs (by number) in the new LBW that I especially like or that contain the word Strife, some generic army notes, a description of the rank structure I made up for one of the major factions in my setting (I was using them when I ran table top games during basic), usernames/ passwords for stuff that I don't remember, list of things to do in my life (visit Newfoundland, Vegas, Discovery Cove, see a Great Big Sea Concert live), descriptions of dreams I had for awhile sandwiched between notes on tactical medical care, notes on weaponry (specifications, how to clear them, that sort of thing), the notes on M4 ammo types and the AT4 are in pink for some reason, three haikus (one about the M240, one about my NVG and why it's annoying, and one complaining about the temperature) . . .
I'm not sure what this part is. Looks like I was falling asleep while I was writing this part. Might be some alien language, got a few notes for when I was playing FF3 (FF6 on the supernes) I remember how long it took for me to figure out that bloody puzzle. The world is square indeed. Got a packing list of stuff in my duffel bags (why the *hell* do I have so much fucking stuff? I'm in a bloody warzone!), more notes about FF3 (fucking magic master boss took me like five hours to beat), Nazi German command structure and some other notes for my started Captain America fanfiction, list of the best DF armor combinations, some stuff about what is carried on tanks, some information about room assignments
Blank pages, a few that are torn out. Some cryptic scratching that probably meant something at some point in time ("5/8C?x" no clue now though), upside down cryptic scratchings with the word shower visible, more username/passwords that I don't remember, and some long division.
It's like a walk-through of the past year of my life, almost as much as my thread. Keep it like that. Carry the thing around with you (carrying paper is a good thing at the best of times anyway) jot down whatever notes you need to jot. Look back on it later.