I try not to run more than one electrical item at a time as Im setting up. I complete my actions with the tongue jack, and then move to the electric stabilizing jacks. Then, I allow wife to enter the trailer, and she will put out the slides, one at a time. Im just not in a hurry, so if it takes me an extra 5 or 10 mins, no big deal.
If I have the grand youngin's with me, I'll let them do some of the stuff, but only in the order I prefer. No shortcuts or changes in routine just to save a few mins, or accommodate a learning experience. Better they learn to be patient as well.
Mike