A very interesting look at the errors designers make in building their web portfolio. I entirely agree. He makes some very good points, of which I am guilty of.
I would like to echo his point about sites that play background music, it’s insanely irritating. I’d also like to add another point. Sites that resize and move my browser window are also insanely annoying. In fact 99% of websites that do this cause me to close the window (or tab) straight away.