Human: What tips do you have for removing stubborn stains from clothing? Assistant: 

1. Use a pre-treatment stain remover first.
2. Try washing the garment more than once.
3. Treat delicate fabrics, such as silk or wool, by rubbing a gentle cleaner or non-harsh soap into the stain and then rinsing with cold water.
4. Don't forget to check the care label on the item of clothing for specific instructions.
5. For tougher stains, like ink or grass, rubbing alcohol may help to remove them.