Congrats on the purchase.
It's always the little things you don't think of
. Put rubberized shelf liner between your paltes and dishes. Otherwise the rattling will drive you crazy. We use the shelf liner in all the drawers and on the shelves so things are less apt to slide around. Check into Tank deodorizers(drop ins) for your black& gray tank. Entry step rugs to limit the dirt and gravel coming in. We don't go anywhere without tire covers. The cost of the protection is well worth it.
I agree with JTH Camper, a video camera would be a great tool for remebering what we've been told. I think that I have a grasp on what I'm being told, but then you go on the next item and there went what we just looked at. After you experienced the coach awhile it'll become second nature