The answer to 'how to clean bathroom' is to regularly clean and disinfect all surfaces in the bathroom to maintain a healthy, hygienic environment. This includes wiping down the toilet, sink, shower/tub, and floors with a bathroom cleaner and disinfectant. You should also clean the mirror, countertops, and any other fixtures or surfaces in the bathroom.
For tough stains or buildup, you may need to use a more abrasive cleaner or let the cleaning solution sit for a few minutes before scrubbing. Proper ventilation is also important when using harsh chemicals. If you have any areas that are difficult to clean or you're unsure of the best approach, it's best to call in a professional cleaning service.