3:30 p.m. Friday, Dec. 7 is the deadline to register for Princeton Public Utilities’ annual residential Christmas lighting contest. Entrants must live in the service area of the PPU. Judging will be done December 10-13 between the hours of 6-9 p.m. If you register be sure to have your lights on. Winners will be notified by December 17. Grand prize is $125, $100, $75 and $50 prizes will also be offered. Registration forms are available at the PPU office and at City Hall.