Check and double-check your bathroom. Bright and clean, bathrooms sell many homes. For the rest of your life. Bedrooms are always outstanding features. Arrange them neatly.
Illumination is a welcome sign.
For after-dark inspection, turn on your lights, from the front porch on through. The prospect will feel a glowing warmth otherwise impossible to attain. Three s a crowd. More will lose the sale. Avoid having too many people present during inspections.