When the clock is the constraint, emergency cleaning is an exercise in sequencing. The goal is not a spotless property; it is a property that reads as clean in the rooms people will actually use, in the order those rooms get used.
First: clear, then clean
Clutter reads as dirt. Ten minutes clearing surfaces, floors and the hallway changes the impression of a property more than an hour of detailed work behind a pile of belongings. Use a basket per room and deal with the contents later.
Second: the bathroom
It is the room guests judge hardest and the one they will certainly enter. Toilet, sink, taps, mirror, then the floor. A dry buff of the taps and mirror after cleaning is what makes the room look finished rather than merely wiped.
Third: the kitchen
Empty the sink, clear and wipe the worktops, front of the hob, and the handles of the fridge and cupboards. Handles carry visible marks and are almost always missed. Take the rubbish out before you do the floor, not after.
Fourth: sight lines in shared rooms
Work to what is actually seen from the doorway and from where people will sit: coffee table, screens, sills and the floor in the middle of the room. Straighten cushions and throws last. Skip the backs of furniture and the tops of high shelves — nobody is looking there tonight.
Fifth: floors and air
Vacuum the traffic paths, mop hard floors, open a window for a few minutes. Fresh air does more for how a room feels than fragrance does, and it avoids masking an odour you have not actually removed.
Odours, honestly
Smells come from a source — bin, drain, damp cloth, laundry, pet bedding. Remove the source rather than covering it; a scented room with an untreated bin smells worse an hour later, not better.
What to hand over instead
If the property needs an oven cleaned, limescale removed, carpets extracted or months of build-up addressed, that is not an hour's work and a scented spray will not bridge the gap. A last-minute cleaning team can take the whole visit off your hands the same day where availability allows, and deeper work can be booked as a deep clean afterwards.