The already unpleasant job of cleaning a toilet becomes even worse when, despite your best efforts, you can't get out stubborn stains, mineral buildups and rings at the water line. If the toilet is porcelain, reach for a pumice stone or stick, an inexpensive yet very effective cleaning tool that requires no chemical cleaning products -- only water and some scrubbing action. While impressive in its efficacy, a pumice stone isn't suitable for cleaning the toilet on a regular basis; reserve the task only for infrequent deep-cleaning sessions.