Going a day without washing your face can cause a build-up of dirt, oil, and bacteria that can lead to skin problems such as acne, blackheads, and blemishes. Washing your face twice a day is the best way to keep your skin clean and healthy. In the morning, wash your face with a gentle cleanser to remove any dirt or oil that has accumulated overnight. In the evening, use a more thorough cleanser to remove makeup, dirt, and oil. Be sure to use sunscreen during the day to protect your skin from the harmful rays of the sun. By following these simple steps, you can keep your skin looking and feeling its best.