The 3 things you need:
- Sand Paper
- Place about 1/2 cup (or more, depending on how many stains there are) of Borax in a bowl and add enough vinegar to make a thick paste. Place the paste on all the stains and leave for 15 minutes. To clean stains at the bottom of the toilet bowl, turn the water off that connects to the toilet and flush until all water is gone. Place the Borax paste on these stains also. Note: This paste hardens quickly, so be sure to put it on the toilet stains immediately after you mix it.
You will have a shiny, new toilet in less than 30 minutes! :)