Tips for creating perfect advertising portfolios

I found this website that has 5 different articles from creative directors and other design professionals about what they look for in a good portfolio. I thought it was helpful and interesting to get 5 different views on how to do it right.

Link to Articles

"As a creative director who has reviewed thousands of portfolios, the first thing I notice is the style and condition of the portfolio. A clean black hard shell portfolio immediately says, "this person is a professional" and cares about the way they present themselves and their work. Aluminum briefcase portfolios also make a very professional first impression too." by Michael Crozier