I work on the sixth floor. It never ceases to freak me out when the window washer comes. Without warning, there is a guy in our window wearing nothing but a string. He simply walks on the ledge outside the windows.
Not only do we have our windows cleaned regularly, we have professional phone and computer cleaners. About twice a month, a woman comes to wipe down and disinfect all the phones in the office. A different company sends a man who wipes the computer screen, de-crumbs the keyboard, and swabs the mouse. These cleaning services are not unique to my job but fairly standard in Hong Kong.