1. Drinking through a straw can prevent tooth decay.

2. Put a piece of chalk in the jewelry box to keep the jewelry shiny.

3. Before applying nail polish, clean your nails with cotton dipped in vinegar, and then apply nail polish when it is dry, so that the nail polish will not fall off easily.

4. 10 Food types that will make you happy: deep-sea fish, bananas, grapefruit, whole wheat bread, spinach, garlic, pumpkin, low-fat milk, chicken and cherries.

When the soup is too salty, add potato pieces and cook for a few minutes, which will absorb the salt and remove the potatoes when serving.

6. Fold two or three pieces of aluminum foil together and cut them with scissors. The scissors will be surprisingly sharp immediately.

7. Wrap the roots of bananas with plastic wrap to prolong the fresh-keeping time!

8. The toilet is broken. Pour a basin of crushed ice weighing about one kilogram into the toilet, and then press the water delivery button. Driven by water and ice, any blocked debris can be washed down without pollution.

9. Clean gauze piece is wrapped with a little pepper shell, tied and put in rice or noodles to ensure insect resistance.

10. Eggs must be stacked upright with big heads up and small heads down, and cannot be placed horizontally. Eggs can be kept for a long time after being gently wiped with a damp cloth and put in the refrigerator. In addition, eggs should not be stored with strong-smelling ingredients such as onions, ginger and garlic, which will accelerate the deterioration of eggs.