A couple quick notes for y’all: Always wear an undershirt with a suit, regardless of personal sweat level, and in particular with light-colored dress shirts. They’re not needed with more casual shirts but they are straight up mandatory with dress shirts. The bottom of suit jackets should end between the first and second knuckles of your thumbs when your arms are hanging by your sides. Much more precise than the ‘cover your butt’ directive above. You can use a pen or your finger when tying your tie if you’re having trouble getting that dimple right. Just drape the tie over a pen or whatever as you thread it through the knot for the last time. The axis provided by the pen will allow the tie to hang cleanly then just pull the pen out as you tighten the knot. Sorry, can’t find link. FYI, the picture in #16 is a four-in-hand knot, which is an asymmetrical knot, while the purpose and defining feature of the windsor is its perfect symmetry. Most everything is great on here, but don’t forget to wear what’s appropriate for the setting you are in. Don’t wear trendy or super fashionable outfits when in business meetings with other generations. You’ll look like a child playing dress up (I’m looking at you #10). I used to work on the Hill in DC and far too many young men showed up as interns or staff asses with a ridiculous outfit a la some celebrity or GQ advert when they should have gone with a well-fitting traditional suit. Just be sure to match your selection to your surroundings.