To conserve water: Do not run water while brushing your teeth. It is unnecessary to waste water while brushing your teeth. Only run the water when rinsing your brush. It is a habit one can acquire easily and can be done for the rest of your life!

Here's a simple tip that will improve the quantity of glass that gets recycled every day. Whenever you place a glass container of any sort in your curbside recycling box, always remove the lid or cap, or corks from wine bottles. Glass containers often get broken in the recycling process, and if the lid is still attached the top portion of the container will often stay attached to the lid. Because it's physically difficult to separate the lid from broken glass at the recycling facility, that portion of the container often does not get recycled. It just gets sent to landfill. So always remove the lids or cap or corks when recycling glass containers.

To remove mold from the grout between the bathroom tiles in a spray bottle mix ½ cup 3% hydrogen peroxide solution and 1 cup of water and spray on the problem areas. Let dry, then wipe down the area.
Note: hydrogen peroxide loses its potency when exposed to air so buy a small bottle and discard after use.

Cancer is described as cells that just continue reproducing until the destruction of the host. In this sense, humans could be looked at as a kind of cancer to the host Earth.