How to do it?
Simple steps.
1. Focus in on the most noticeable, what people will see. So if the bedrooms are not front and center, close the doors and move on!
2. Put all dishes from the sink into the dishwasher. (2 minutes)
3. Do a quick spray down of the kitchen counters. (1 minute)
4. Pick up magazines, mail, and other paper from around the room and put in a centralized location (like a tray) (1 minute)
5. Put all stray clothes, shoes, and coats from the living areas to the respective bedrooms (1.5 minutes)
6. Vacuum like a mad woman (or man) (3 minutes)

7. Spray down visible mirrors (1 minute)
8. Light a candle! (.5 minute)
Remember this is a quick fix. You should later go back and actually wash your dishes, sort the mail/paper, and fold the clothes that made their way back into the bedrooms. It takes longer to make beds, dust, and mop so do those when you have more time as well!