3. When it comes to arms, have some tricks up your sleeve
"When the sleeve length is too short, you can add a watch, layer a longer button-down underneath—or do what I do which is a lot of pushing and rolling of the sleeve. A blazer sleeve should come right past your wrist bone, that's my rule. Once you've gotten a bit more advanced and know how you'd like it to look, some gents wear it a little shorter to let a little more shirt cuff to show."