Dressing for the job you landed is just as important as the clothes you wore to the interview.
There are tons of tips about what to wear for interview. Everything from not too high of heels to your tie tied to the right length. But what employees sometimes forget is that you must continue to meet an appropriate and professional attire AFTER you land that job.
One woman who was brilliant and wonderful at her job consistently wore clothing too tight or revealing. When a promotion became available she dressed appropriately for the interview but forgot that the interviewer and HR knew how she dressed every day.
Even if you aren't up for promotion, what you wear speaks to your character.
