1. Windows and Mirrors The first thing people see when they enter the bathroom are the walls and the mirrors. It is important to keep them clean and aesthetically pleasing, so you must be sure to clean them properly. The best thing to do is to scrape the walls and mirrors of every bit of dirt and grime. Fill a spray bottle with 1/3 cup of white vinegar and ¼ cup of rubbing alcohol; you can also add 1 tablespoon of automatic dishwashing detergent. Spray evenly and scrub along the walls and mirrors. The alcohol and dishwashing detergent should leave the surfaces clean and fresh.