I say start with white vinegar and reuse able rags. Start from the top down. Walls ceiling (esp the fans) get corners too. Then move to tables and furniture and then do the floor last. Very important because you won’t get everything on the rag or in the garbage things will fall. Go room by room and just because the main hangout room is clean don’t let that deter you. I’d honestly say the rooms you use less first because then you won’t feel done until you are and you can move things into those rooms for storage or to clean under them instead of around. Maybe even go as far as rearranging the rooms too.