It helps to have multiple printed copies of your resume, references, and the position you're applying for. The printed resume is the most essential because you may interview with several people in succession and go through 3+ copies of your resume easily.
Absolutely true. Several years ago I had a recruiter hounding for nearly two months(calling me multiple times per week) me to go on interviews that didn't appeal to me despite the fact that I made my expectations clear. I finally relented and went on one that seemed the most reasonable of the bunch. Late in the interview, we found a few a changes that the recruiter had made, including lying about my education history. The interviewer must have chewed them out because I didn't hear back from them at any point after that.