Great suggestions. I would like to add that 3M now has floor pads made from the same material as Mr. Clean Erasers. Just recently began servicing several commercial accounts with these type tiles that use these for cleaning. They clean the stains very easily. Pick up an eraser pad and try it with your cleaner. It may be an easy solution to the problem.
Cleaning Superhero
alter ego:
George Barnett
G & G Services, LLC
Member of BNI Trussville