What I'm Wearing
I like to think of this look as the Everymans uniform -A slim fit grey suit, black sweater, black dress shoes, and watch to match. The key component being the fit of the suit. The pants should be hemmed to 1/4 inch break and no more ( use those exact words with your tailor), and they should fit your waist so that a belt is optional. The jacket should be just long enough so that when your arms hang to your side it ends at base of your wrist. Feel free to wear this uniform morning, noon, and night.
Photo credit: @BodiKarsono