tbone, when i have supers on, unless there is a problem, i don't lift anything off. if the bees are happy and are making honey i don't mess around with inspections in the double deeps of my hives, i just check the progess of the supers.
with that said, to inspect deeps, i use an extra deep set off close to the side. take off the outer cover, place it on top that extra deep, upside down. if i lift a box it goes on that extra deep. if i am looking at frames i can also use that extra deep to put frames in, or use a frame holder. i always inspect the underneath side of the inner cover to make sure the queen isn't up there for some reason before leaning it up against the hive. if i want to go to the first deep, i lift the 2nd deep off and set it off to the side on the extra deep, go through the first deep, then i put the 2nd deep back in place and go through it. really, you only need to lift one frame out to enable going through the rest of the frames of a double deep hive.
hope i made sense?