(in no particular order)
-- Tweed, Tweed, Tweed - especially trousers, jackets, and vests.
-- Jackets - blazers, lightweight coats, and rain gear especially - I love how refined and complete your look becomes whilst wearing a jacket.
-- Casually wearing a dress shirt (unbuttoned, rolled/flipped cuffs, a few buttons undone) with a terrifically tailored suit.
-- Unexpected pops of colour - like in dress socks, ties, and those iconic Moncler jackets and vests.
-- Chunky hand-knit sweaters.
-- Global living with a purpose - like the bilingual article headings in September's US version of GQ Magazine. English and Spanish for Spain's tennis great Fernando Verdasco, English and Italian for the article on the best dress shoes, English and French for "the new business casual", and English and German for the spot on military inspired watches. Adding international input for poignance and perspective is the best accessory speech can ever imagine.
-- Living your life with courtesy - I'm bringing back the "courtesy wave" whilst driving to signal thanks for others driving with kindness, the "courtesy flush" during visits to public toilets that trigger even your own gag reflex, and the "courtesy call/message" if you're running late to an appointment, will be unable to keep an arrangement, etc.