OK, so everyone here tells me it looks bad to wear a shirt and tie w/o a jacket or sports coat. Why is this rule a rule? Also, I am assuming the jacket should really only be work when I am standing/walking (not sitting) unless I am in more formal meeting..is this reasonable? I can't imagine being in a jacket all day at my desk. When does the jacket come off for you? I am an attorney, but work in a rather informal setting (local government). At work, several people wear a jacket with a shirt/tie, but not all. Nobody really wears a suit unless there is a public televised meeting, and even then the suits are not always worn.