This review is a bit lengthy, as I've tried to provide a lot of detail:
I recently returned from a 4-night cruise to Catalina Island and Ensenada, Mexico on board the Carnival Paradise. (December 4th-8th, 2006).
Embarkation: We arrived at the terminal in Long Beach, California at about 11:30. Porters were on hand at the passenger drop-off to assist us with our luggage. They were very quick, efficient, and courteous. I had two large bags. I tipped them $5.