Tea Tree Oil
This essential oil has antiseptic ingredients making it a perfect disinfectant. Add a few drops to a small spray bottle of water for an environmentally-friendly disinfectant throughout your home.
Though harmful to skin and eyes in concentrated form, ammonia is not harmful to the environment and very effective at cleaning windows and mirrors. Mix with water and use in a spray bottle for easy cleaning.
Used with lemon, coarse salt works well to clean countertops and sinks. Also, coarse salt is great for scrubbing cast iron skillets. Scrub with a soft sponge and rinse off.
When mixed with a mild liquid soap, white vinegar tackles grease and shines floors and windows. Once a week, pour down drains to deodorize and disinfect.
Deodorize your garbage disposal by cutting up a lemon and putting it into the device. For scrubbing bathroom surfaces, mix lemon juice with coarse salt.
Just set down an open box of baking soda to deodorize musty smelling spaces like basements and mudrooms, or freshen up the fridge. Baking soda is also good at removing tough stains from carpets, and can be used for scrubbing sinks and countertops.