A Practical Guide to Men’s Fashion

• Cedar shoe trees are a must, especially when you travel.
• Backpacks might be "suddenly cool for grown men" but not with a suit. Grow up, and get an adult bag.
• When it comes to watches, they serve a purpose — presenting yourself as "high-status" is proven to make you appear more attractive to women. But avoid Panerai — it's action hero watch for guys who brag about cheating on their wives. Here's everything you need to know about that.
• Other than wedding rings, watches, and cuff links, no jewelry. The only thing worse for a woman than meeting a guy she likes with a ring on his wedding finger is meeting a guy she likes with a ring on any other finger.

Again, this advice is all about risk reward. Because the vast majority of men are fashion illiterates, the smartest thing they can do is keep it simple and stay in a safe zone.

So, these tips won't get you noticed at Soho House or on the cover of GQ; but on Wall Street and in business world, you can't go wrong with this advice, which is more important.

John LeFevre is the creator of @GSElevator on Twitter, the editor of The Graze, and the author of the New York Times bestselling book, Straight to Hell: True Tales of Deviance, Debauchery, and Billion-Dollar Deals.