Being a Greener Maid

So I am currently a maid (of just one house) and although I used to clean my own home with green products, I admit I've fallen off the wagon. And so at work I've so far used ammonia countless times which reminded me that I deserve better. I am officially going green (again). But this time it will span over two households. In the house at which I clean, lives a young man who has many medical issues and needs clean air and a clean home. I hope you will all support me in my green revolution and give me tips along the way.