One of the easiest ways to keep the tank and bowl fresh and clean is probably sitting in your pantry right now. Vinegar is a powerful cleaning aid, and that includes in the toilet. Before you give the bowl its weekly cleaning, pour one cup of white vinegar into the toilet tank and let it sit while you clean the rest of the bathroom. When you’re ready to start on the toilet, begin by flushing it two or three times to completely flush the vinegar out of the tank. Doing this weekly really cuts down on mineral and hard water build up and helps your toilet keep working as effectively as possible.