 That's not the only upside of cleaning. More Gen Z and millennials say they'd prefer a clean home to an expensive gift. Talker Research also finds 34% of couples with similar cleaning habits have been in their relationships for five years or more. Deborah Rodriguez, CBS News. Wall Street today higher, the Dow gaining 50 and the S&P up 14, but the Nasdaq up 146 to close at a new record high.