Ties are optional, with wool or cotton sweaters, trousers, and loafers with dark, coordinated trouser socks being fairly common. They are important for coordination. Charcoal pants and a white oxford button down go a long way. A banded-collar shirt is another good staple that goes well with blazers and vests. Let common sense prevail when dressing for work.
Wing tips look stupid with khakis.
Bucs, loafers and lug-sole boots are all good options. Looking neat at work should be a priority. Ripped jeans are only appropriate if you're under the age of 19 or you have a music career. Wear t-shirts, baseball caps or sunglasses. Accessories are great wardrobe enhancers but don't quite qualify.