Hiya,
I would agree with Andrew re the COSHH reports, you are responsible for any product that you give to your employee. If they were to misuse a product, you could be in big trouble.
Likewise, you are also responsible for PPE, for example, eyewash solutions and basic first aid, gloves etc.
For stainless steel we use baby oil, and instead of glass cleaner we use vinegar solution. Simply water, distilled vinegar and lemon juice. Both work a treat, and dirt cheap to supply.
Hope this helps
Paul