What advice does polonius offer laertes about his clothing?

Polonius advises Laertes to take care in his clothing, suggesting that he should neither be overly extravagant nor too shabby. He emphasizes that clothes should be well-fitted and appropriate for the occasion, as they can influence others' perceptions. Polonius believes that one should aim for a balance that reflects self-respect and dignity without being ostentatious. This advice underscores the importance of presenting oneself well in society.