How can I save money when booking a hotel using an opaque site?

How can I save money when booking a hotel using an opaque site?

Catharine Hamm (Travel Editor, LA Times) gives expert video advice on: Can I get a better deal avoiding the 800 number and calling the hotel directly?; Is it possible to get a cheaper rate if I just walk into a hotel?; Are there certain types of hotels that families should avoid? and more...