Thou Shalt Not... Pluck?

Know this, ye faithful: hair gel is hateful unto the Lord.

CNN: Iran bans Western haircuts, eyebrow plucking for men

I understand that hard-line Muslims want to discourage vanity. I think that's it's idiotic to heap moral condemnation upon metrosexual hairstyles, but I understand that the negative perception of vanity is the religious context from which this puritanical nonsense emanates. But where does one draw the line? Are brushing teeth or taking baths next on the list? Does wearing deoderant make me sinful in the eyes of the Lord? Will owning a mirror in my house condemn me to eternal damnation in the afterlife?