I am just starting out but I never found such a field and expertise as cleaning and all the fascinating chemistry involved in cleaning. I have taken other cleaning classes and read about home made cleaning remedies.  I have really become interested because of my five pets and the dangers of small children and others sensitive to harsh chemicals.  There are a few recipes that I have that require bleach, and some that require ammonia.  I will use bleach sparingly and I will not use ammonia in my own home or a home with cats because they mistake the ammonia as urine and them may not use the litter box anymore.  There are several harsh chemicals that we should not use.  I am simultaneous taking a hazmat class and it discusses how much I did not know about basic home cleaners as well as industrial strength products such as the ones we buy from non green cleaning suppliers.  MSDS forms are rarely read and respirators  really should be used but people who are lacking basic chemistry knowledge about alkalines and acids.  I also am designing a land scaping floor plan that uses all sustainable pieces of the plan.  I enjoy reading and making my own cleaning products such as most wood floors, the type that need the polyurethane finish can be washed with vinegar, dish soap, warm water and tea bags.  I became very interested in this because I am always cleaning and taking business classes to run this business as well as a caregiver for the elderly, children , and pets.  I really do want to protect those particular clients of mine from a dirty house but also a house that instead of germs uses harsh chemicals that can severally harm the elderly, the young, as well as pets.  So my goal is that when my business services are in the decline mode and I need to be innovative I can launch new green products for not just cleaning but for the clients and pets I care for.