Just wondering how many of you bother with profiling your monitors IF you edit and print your images in varying lighting conditions?

It seems to me that profiling your monitor doesn't make much sense unless you are quite religious and dedicated to maintaining a consistent viewing enironment (lighting, neutral wall color, ambiant light level, monitor background color, etc.)

Or am I overlooking some advantage to profiling if I am going to be a slob about my viewing conditions (sunshine, evening, colored walls, etc.)?