Thank all of you for the recommendations. I feel pretty prepared since I just inspected the hives and the third box (the first honey super) on each hive is filled with honey but it isn't all capped - about 45% capped. They had barely started on the second honey super.
So I have two finished shallow honey supers ready to go. I also have two deeps left over from my not recognizing how heavy boxes of bees actually were going to be! When the honey is capped, I can take out an empty super and move the capped frames into it and replace them with new frames - or I can add another super, since I have one ready.
My beekeeping teacher at the Folk School, Virginia Webb, took filled and capped frames from hives and replaced them with empty comb or foundation. When she removed a frame from a hive, she brushed or shook the bees back into the hive. She then put the capped frames, now beeless, into an empty super and kept it covered with a cloth while we worked so that the bees wouldn't go back to it.
I'm eager to taste the honey and that seems like something I could do with one capped frame in one of the filled supers just to find out what the future pleasure will be
Thank you, as always, Michael, Brian, Amy and everyone who posted and thanks to earlier postings about using mediums because the deeps are so heavy. I found even the filled shallows today to feel heavy. I actually thought I needed to loosen the corners with my hive tool, but it was in fact because the super was so full and I didn't expect it to be that heavy!
Linda T in Atlanta