The Edit: How about an accessory?

A dinner jacket should be the sleekest item in a man's wardrobe, and by sleek we mean flattering, as well as elegant. This is a function of the suit's formality, which has traditionally dictated pockets without flaps (aka jetted pockets), jackets without vents, and trousers without turn-ups and belt loops but with the outside seams covered. All of these things lengthen the line of the suit, accentuating a man's height and disguising his girth.

There isn't a huge amount of room to manoeuvre when you're in a tux. Beyond switching the dinner jacket for a velvet smoking jacket and changing the black Oxfords for velvet slippers, few men stray far from the classic formula. This means we can get dressed quickly and spend a minute or two adding the right accessories to the mix. When everyone's in a black suit, a white shirt and a black bow tie, a few discreet adornments go a long way. These ones will take you in the right direction.