I would say I have the process of submitting iOS apps down, I could probably do it blindfolded. Actually I HAVE done it blindfolded on several occasions guiding people over the phone on their very first submission.
But today I am doing it for the first time on an app for the Mac App Store (aka MAS). Let’s see if I can see this through to a successful conclusion, or at least until the ball is out of my court and with the app review team.