Broad "disinfection" of buildings, stores, etc., are the most meaningless, feel good steps that can be taken. Businesses, schools, etc., that are doing it know that it is done solely for purposes of PR. As soon as the store reopens, thousands of people will go through it and within a couple of hours completely recoat every item with bacteria, viruses, etc., and fill the air etc.
The only step that makes sense is to take INDIVIDUAL precautions about washing your hands, cleaning your workspace, airline seat, etc.,not touching your face, etc., or social isolation from crowded spaces.