I labeled where on the shelf each stack came from.
Of course, having done this, there is nowhere to put the bed once I disassemble the big bed until I get the bookcases moved and re-loaded. I may be sleeping on the couch.
I could never be one of those people who renovate and live there while it is being done. I need me a comfy bed and a place to sit that is clean and welcoming. I joke that Sienna doesn't do chaos well. I have found that I don't either. Also, this is living proof that I am avoiding clearing the second bookcase.