7. Thou Shalt Not Wear Square-Toed Shoes
Why do people keep making these? Because there are suckers born every minute. These don't look good with anything, and aren't as timeless as round-toe loafers or brogues. What you're really looking for in a pair of proper footwear is something that will look as dope in 30 years as it does now. Why do you think Jordan 1s still look awesome? It's because you can't fault simple yet great design.