Do you think of yourself as a perfectionist? Does the slightest tilt in a hanging picture drive you up a tree? Have you a keen eye for geometry with no need for clunky old rulers, squares or compasses? Are you really that perceptive or could it be all in your head? Complete this little exercise and discover your own "close enough" rating.

"Click and Drag" your adjustments to the drawings below:

Play EyeBaller