How to Judge a Duct Cleaning Company -The Art of Getting Your Money’s Worth-
(ORIGINALLY PUBLISHED IN THE NATL. AIR DUCT CLEANERS ASSN. MAGAZINE) If I were asked to find a good neurosurgeon, I’d be in trouble. First of all, I know little about the subject. I wouldn’t have enough knowledge to know whether a doctor was talking sense or nonsense. Secondly,...