Spring cleaning
Spring cleaning was a custom, in some Human cultures, of thoroughly clearing out and tidying one's home, during the season of spring.
In 2401, Jean-Luc Picard and Laris oversaw spring cleaning at Château Picard. Picard commented that he did not think Romulans had spring cleaning, which Laris confirmed, calling it "entirely unique to Humans and their belongings." (PIC: "The Next Generation")