Congrats! Maybe it sounds silly, but if it were me, I'd consider a thin-ish microfiber cloth to place on the area where your wrist rubs the MacBook.I hear you, this Mac does not leave the house. Not a work computer. I am so cautious and careful with most of my watches. I am not leaving the house with this watch as I adjusted the band and did not have the proper Loktite, so until the order gets here and I apply it this watch is not going outside the house.
Probably not too thick to prevent the screen lid from closing, but not too thin to be ineffective at preventing scuffs.