Stains app
Everybody knows it, there are thousands of different types of stains and at least as many types of materials they cling to. If I do not know how to get it clean again, I start my spots app on my phone.
Simply select the material, the type of stain and the app will show you how to remove it. I can only recommend, has helped me many times. The app is available from Apple in the App Store and Android in the Play Store. She is free.