Yellow stains on the toilet seat: Use dishwasher tablets to make the seat pearly white again. The Somat All in 1 dishwasher tabs (promotional link) with 100 tabs not only make dishes but also your toilet seat shine again.
If the toilet is already heavily calcified, home remedies can help you get a flawless toilet. If limescale cleaners fail, a dab of toothpaste will help. Can you throw garbage in your neighbor's bin? read More home remedies to remove yellow stains.