I'll give you some first. I have many ways here, but I don't have much time. I'll send you some when I have time:

The magical use of vinegar:

1. The towel is hard and tasty. Soak in vinegar and alkali+water, and the towel will be as soft as ever.

2. Clothes dipped in vinegar with fruit juice will fade.

3. Stop burping: Drink one spoonful of sugar and two spoonfuls of vinegar to stop burping.

4. bitten by mosquitoes, no cool oil, vinegar, itching and swelling.