I built a cabinet (built-in) in an open closet (approximately 6'x4') that is used as a mud room. The base of the cabinet is a bench with cubbies underneath for shoes, etc. The back is wainscot with hooks for coat and above this ares shelves for miscellaneous. It is a wall to wall built in, BUT it does not go all the way to the ceiling. In fact, as per my design, I left approximately 1 foot at the top as sort of a last shelf. When I finished, I checked the level on the shelves and built in unit and it is perfectly level. However, when standing back it looked off. So I put a level to the ceiling and found the ceiling to be off. My question is, does anyone know of any "tricks of the trade" that can make this look level to the eye? I though about painting the back wall at the top with a bit of an angle and an off color from the cabinet to give the elusion of being level. But I am at a loss. Can anyone help me?