Carry extra stockings, in case of runs, and bring just the makeup you'll need for last minute touch-ups. When choosing shoes, avoid spike heels and boots. A medium heel is usually the safest choice. And carry either an attach case or a good quality purse but never both. If you are prepared for the interview, three-quarters of your job is already done.
Preparation starts with research.
Either visit the library and read everything you can on the company, or call their sales or public relations department and ask them to tell you all about the company. You'll be amazed at how much insight you will receive. Next, make sure your resume is updated and free from flaws. When you are getting ready for the interview, a well-stocked briefcase is your best protection against unforeseen problems. Have at least 3 or 4 extra resumes with you, along with a list of references, and any materials documenting your work.