1. Before the clothes are soaked in water, drop a few drops of detergent in the oily place to wash the dishes. Be careful, you still can't get wet, and then dry it. Wipe it almost, then soak it in water and wash it normally. 2. After the clothes are stained by oil, squeeze some toothpaste on the stain, gently rub it a few times, and then rub it with water to remove the oil stain. You can also wipe the oil with alcohol or salt solution. If clothes are soiled by cooking oil, they can be soaked in warm salt water and washed with soap. Apply a paste made of alcohol and chalk powder to the oil stains on leather clothes. When the paste is dry, wipe it off carefully. When there is oil stain on silk clothes, talcum powder can be made into paste and coated on the oil stain. After a period of time, remove the talcum powder, then put a layer of tissue paper on the silk and iron it with an electric iron that is not too hot. 3. Don't use gasoline, natural water and banana oil, which is bad for clothes and tastes bad.