Sleeves Fit — It takes a small bit of effort but making sure your shirt and jacket sleeves fit properly is the first step to dressing fly. It's the difference between ladies' man/boss and Ewok Bar Mitzvah.
Your shirt sleeve should hit at your natural wrist. Your jacket should hit about a half inch above that. Master this and you are at the front of the race. Remember, commercial brands always make their sleeves on the longer side to fit as wide an audience as possible, so it's on you to go the tailor and make it right. Critical but so easy!
Photo: Courtesy of Elliot Aronow