With a small coup to clean the toilet,you can clean the toilet more cleanly.
Prepare a bottle of white vinegar, and a bottle of JOBY Series Toilet Cleaner as the tools.
Pour a few drops of white vinegar in the toilet, no too much.
Then, you can pour cleaner into the toilet, and you are ueing JOBY Series Toilet Cleaner, only a few drops can be enough.
Clean with a toilet cleaning brush, and then wash it with water, finally the toilet will be looked as a new one.