Hand hygiene is important to prevent the transmission of microorganisms between hands and surfaces. Proper handwashing significantly reduces the bacterial flora on skin and protects oneself and others. Hands should be washed before and after preparing food, eating, caring for someone sick, treating wounds, using the toilet, changing diapers, and after household chores. Jewelry and long or chipped nails can harbor more bacteria. Global Handwashing Day is celebrated annually on October 15th to promote the simple act of handwashing with soap which can reduce disease rates and save lives worldwide.