A is for Accessories

DO: Ascots. Just kidding. But don't be afraid to punch up your outfits with a little something extra, whether that's a pair of sunglasses, a hat, a watch, a pocket square, a knit tie ... look at David Gandy up there. Just remember to keep it simple.*

DON'T: Do puka shell necklaces and arm parties.

*This should really be the final tip, because accessories should be the last thing you put on ... but they're not called z'accessories.

My Soul Insurance / Via Flickr: my_soul_insurance2004

B is for Belt

DO: Know where your waist is and wear your pants at it. Even if your pants don't need help staying put, a brown leather belt adds that extra touch of, "Oh, you're an adult," to an outfit.

DON'T: Be Justin Bieber. There's a reason it's called underwear ... it's not meant to be seen outside of your pants.

Polo Ralph Lauren / Via ralphlauren.com