The core loop
The official Roblox description centers on returning items, power washing dirty objects, buying upgrades, and cleaning with friends. The useful beginner habit is to finish a visible task group, check the response, and then decide what remains. Randomly carrying items across the mansion makes the final missing objective harder to diagnose.
Why one room first works
A room-sized search area keeps object matches and missed dirt manageable. It also gives you a clean before-and-after check: if progress stalls, the cause is probably in the room you are already examining rather than somewhere across the mansion. The Mansion Route expands this into a repeatable whole-house method.
When to use friends
Co-op helps when responsibilities are clear. Give one player a room or a task preference, and use short handoffs for uncertain objects. The game supports cleaning with friends, but this guide does not claim a maximum party size that the current official page does not state.