I went through COT summer of 2001 and it was a blast - we were at Gunter annex (of Montgomery AFB) and there are many fond memories of watching movies on cable while polishing the ol' boots, throwing back drinks at the on-base bar down the street, and of course our Spirit Missions which involved the static display next to our muster point and the other classrooms 😉
We didn't need civilian clothes the first week or so because even off duty we had to wear those crappy PT uniforms (the crappy blue short shorts and the dorky hats that brand you as a doofus HPSP student) but later on when we had the weekends off we had a chance to head down to Panama City as a flight (well, partial flight) and relax. Bring a few changes of clothes and that swim suit if you plan on doing the same!
The only things you have to remember are to pick up the correct way to address the officers, study the lessons the day before, and %$$@ it, SHOW UP ON TIME TO MORNING MUSTER!!! Nothing cheeses off your flight more than every other flight saying, "All present and accounted for, sir!" and your flight saying, "Two missing (DOH!)" ...and by on time we mean ten minutes early, in keeping with our adage, "Early is on time, on time is late," and, "Hurry up and wait!" Oh - and for your urine drug screen, get in line before you have to go because I think I suffered some renal damage because I got in line when I started thinking I had to go ...right behind 100 other people. Guess how long it takes to chaperone 100 other people to go to the bathroom... And now that I think about it, bring your immunization records - I was a little lazy about getting mine, and they're free, but getting every immunization all at once in both arms kind of hurts.
COT is a whole lot of fun - just know that you'll be spending a lot of time grumbling because you're black flagging almost every day (temperature too high) - we missed our Confidence Course and our leadership activities got shortened up some because of the %$#@ heat - who decided to have COT at an AFB in the South lol????