Actually there is another one called Obsessive–compulsive personality disorder (OCPD) is a personality disorder which involves an obsession with perfection, rules, and organization. People with OCPD may feel anxious when they perceive that things are not right. This can lead to routines and rules for ways of doing things, whether for themselves or their families.
It is a personality disorder, though in your friend's case, quite harmless.
The primary symptoms of OCPD are a preoccupation with details, rules, lists, order, organization, and schedules; being very rigid and inflexible in their beliefs; showing perfectionism that interferes with completing a task; excessive focus on being productive with their time; being very conscientious; having inflexible morality, ethics, or values; hoarding items that may no longer have value; and a reluctance to trust a work assignment or task to someone else for fear that their standards will not be met.
Some people with OCPD, but not all of them, show an obsessive need for cleanliness. Those that do not show this tendency are sometimes good at setting up systems to maintain cleanliness, but may not follow through with the need to clean because of other "more important" priorities. For example, the need to get a good grade or finish a project at work might cause the OCPD person to have a quite messy and unorganized home. But if that same person was suddenly unemployed or finished with other activities, he or she could very well start becoming obsessed with cleanliness as other activities take up less time.
There is a wiki page on this disorder : http://en.wikipedia.org/wiki/Obsessive–compulsive_personality_disorder
:p
Alot more simpler than the Myer Briggs or DISC...
