I would like to see an “additional information” system akin to the one used in Heroes of Might and Magic III. In that game you could right click on most anything and get more info on it in the form of a new window that stayed up as long as you held the right mouse button down. Even if the item you right clicked on wasn’t anything special it would tell you exactly what it was, such as a rock or tree. This helped to clarify anything you were unsure of through the graphical cues alone.
It was extremely handy and easy to use.