They're probably on the top of your head...
Seriously, I used to have the same problem (forgetting where I put things). Now, when I put something down, like my glasses, I stare at the object for a second or two. That seems to tdo the trick, I can recall where I left it. It's when you put something down when looking elsewhere that you won't recall, at least for me.
I was going to go with the pressure switch in the tailshaft of the tranny. I notice that you have the same powertrain is I do. How did you do it?
Well I started out with the pressure switch. It went horribly wrong for me. I drilled the hole, shavings got in the trans and then my valve body never shifted again. So I got the trans rebuilt locally. Had a time finding a decent rebuilt valve body, but once we did it seems to work well.
So I rode with it on a manual switch for a while (after I replaced the solenoid and got it working properly), then I bought a speed switch and paired it with a universal vacuum switch and tuned it to my liking. It is almost as good as the computer in my opinion as it has two inputs to tune to get the transmission to do what you want.
I know a lot of people used the pressure switch and it worked, but I would I only advise it if you plan on dropping the transfer case and removing the tail housing to drill and tap the hole. It's the safest way to do that. Don't be dumb like me.
More info and good reading about all this in one of my threads.
I'm struggling with how to handle my lock up of the TCC on my first year A4LD. I have done the duraspark withe HEI module and removed the computer. I tried the pressure switch method and failed horribly, so I don't think I'm willing to drill a hole into the case of my trans again. So I know...
www.therangerstation.com
I also highly recommend the Transgo Shift kit. It is definitely worth the $20 and the tech support is amazing. Helped me solve issues via email.