6 Foolproof Ways to Have a Great First Day at a New Job

"Prepare your first-day outfit based on company culture and the job you seek, not the position you were hired to fill," Schweitzer advises. "In addition, have your wardrobe prepared for the entire first week in advance. Iron, launder, and dry-clean dresses, shirts, and suits." Personal grooming is also a top priority, so make sure your hair is tidy and your nails and teeth are cleaned, and of course take a shower — but skip the perfume.