I was reading that it can be a good thing to bring a familiar item with you to job interviews. Something that you can focus on and use to calm yourself (basically like the security blanket or teddy bear that kids carry).

I myself bring my laptop. Not only because it is something familiar but because it has the development environments I use (which has come in handy at least once when an interviewer wanted to quiz me on code and found that his machine did not have the ide in question) as well as code that I've written.

I hear that some people bring their favorite pen, or a notebook, etc.

Do you any of you guys have an item that you bring to all of your interviews and if so what?