I logged my flight time the first 3 years of my military flying and then I just fell way behind because I was gone all the time due to OIF/OEF.

My guess is that you have a 12 or 10 year UPT commitment. You will get plenty of hours. If you are a reservist, your upgrade to AC/IP might take some time longer than your Active duty counterparts. Upgrade to AC as expeditiously as you can (don't do it before you are ready!). I haven't been as judicious as I should be in logging my time, but I justified it because I was flying a lot. I was judicious in reviewing my flight records and my monthly flying totals. That made my yearly records review a little easier.

I recommend you create (if you haven't done so already) an Air Force Portal account. Under the workspace tab, you can add HARMS to your workspace. It is a great link because you can check your ground and flying training accomplished and you can pull up flying history by aircraft. Additionally, you can view your latest flights and check for accuracy. Essentially, you are tapping into the database that your Squadron SARMs people use (Oracle). It is a great tool and you can check it from any computer.

So, basically I don't keep a log book. I ensure my military flight time is accurate via the AF Portal. However, if you continue to keep your log book, definitely keep the mil and civ time separate. Don't let yourself fall behind on logging hours (a palm pilot would help w/ that when you are on the road). Like I said, I fell so far behind that I did not want to go through the effort of adding 900+ flights into a personal log book when I knew my AF records were at least 95% accurate.

Sorry about being long winded. I hope it helped a little bit.