Every business man needs a definitive sports jacket. Checkered blue jacket with a small yet eye-catching lapel pin (in maroon, no less) works wonder with in an otherwise plain blue/grey ensemble. Love this jacket.
Tweed is back in a big way! It's a classic fabric, so don't let all those stuffy professors keep it to themselves. Grey tweed looks particularly sharp here in a three piece suit paired with a rich burgundy tie and pocket square.