What do I wear to an interview when it is 100 degrees on the subway platform?

What do I do if my cell phone goes off in an interview?

What do you do if you are late for an interview?

When I go on an interview I like to talk about my personal life... is that acceptable?

If I emailed my resume to the agency and the client has it... do I need to bring resumes with me?

I like to have fresh breath when I go on an interview... is it okay to chew gum?