"Though people are still not in the habit of returning trays, I feel that people have been making the effort to be neater when they eat. They try to keep the leftovers within the trays and some of them even stack up the dishes nicely for me, so it's easier to clean."

Cleaner Leow Siew Eng (above), 47, who works at the Hougang Mall food court and is doubling as a table spy for The Straits Times during the Goodness Gracious Me! campaign