Your question is really broad which makes for a difficult succinct answer. The link for the WAYWRN casual thread is below. You might also consider browsing the Streetwear & Denim forum.
So I just purchased my first 2 pairs of AE's; Black Park Ave and Walnut Hale's. So obviously the black PA's are a staple and can be dressed up with just about anything, but what are your opinions on the Walnut Hales? It's definitely a lighter shade of brown so is there anything I should avoid wearing them with? Can they go with a dark navy suit, light grey suit, and dressed down as far as dark denim with a sport coat?
Thanks for the input. The black PA's will definitely be for more serious attire so these will be paired with slacks and chinos or nice weekend wear more than anything. My workplace is terribly under-dressed as is so it won't draw any unwanted attention.