● Ten out of 19 of the best-selling household floor cleaners made floors more slippery than they were before cleaning, according to a National Floor Safety Institute (NFSI), Southlake, TX study. “Most of the products tested contained a strong fragrance; it was like putting perfume on the floor,” insisted NFSI executive director Russell Kendzior. “Although they made the room smell good, such fragrances are most likely the culprit behind the slippery film.” The study also found that the aver...