The flight hasn't finished until you've taxied the aircraft to the parking position and shut the engines down.
In reality I don't really think there are any golden rules as such. Safe operation is based on many factors including good training, experience, preparation and teamwork.
Whatever you are doing, always have an "escape" route, keep thinking "If this option doesn't work what am I going to do next?" Never get into a situation where you have only one option.