Known rooms versus a complete map
Living Room, Office, and Great Room are observed labels in current gameplay references, but they do not form a verified full mansion map. Use any room names visible in your session. The planner also accepts descriptive labels such as Upstairs Hall, so the method stays useful when the official name is unknown.
Solo route
A solo player should keep the unresolved queue small. Finish local washes and obvious returns, carry one confirmed destination item when moving, and leave uncertain objects in a review group. This reduces the number of places you must mentally search when the final objective refuses to close.
Co-op route
Give each player a room or a preference such as Wash or Carry & place. Use one handoff point for objects that belong elsewhere and one person to watch progress. Room ownership prevents two players from washing the same surface while another room remains untouched.