I found a new method on the mobile television when I was taking a bus. Put the toys in a large pocket, then put in some salt, then clench the pocket opening, then shake the pocket several minutes violently, then take the toys out, you will find out that the toys are as clean as new.
If there is an oil spot on your rug, you can sprinkle a little salt on the spot and rub a few minutes, the oil spot will disappear.
The same method can be used to suede shoes. Put on some salt and brush it with a little brush, it will become clean soon.