Trust your instincts when it comes to using cleaning products. Read the warning labels carefully. If you have to wear rubber gloves or avoid inhaling it, is it worth using? Any chemicals that make up the cleaner will eventually drain down your sink and into the sewer systems then into rivers, lakes and the ocean. Opt for using cleaning products from truly green companies, or use lemon, vinegar, baking soda and a little of your own elbow grease to get the job done.