You must take it with you. No matter where you go for an interview, it is basic etiquette to bring your resume. Going to an interview without a resume will make people feel that you don't care and don't respect what others mean. Worst of all, you must write a copy there. I'm an interviewer. I don't even bother to read it without my resume. I also want to see how powerful you pretend to be, and whether your brain is flexible or not.