Mold is a problem in many bathrooms, because the space is often small and not well ventilated. You can reduce mold by keeping a window open, especially when you're showering or bathing. You may also want to install a properly sized ventilation fan. By removing moist air and drying out your bathroom, a ventilation fan helps to prevent mold and mildew. Some new fans can operate continuously and quietly while using less energy.

Old shower curtains can attract streaks of mildew and be difficult to clean. Instead of passively letting the mold grow, however, you can keep an extra shower liner on hand and switch out old shower curtains as soon as they begin to droop and mold. In addition, seal air and water leaks with caulk or expanding foam.

You can also purchase a “daily shower spray” to help keep mold and soap scum at bay. These sprays should be used with caution, however. Although they tend to be gentler than heavy-duty shower cleaners, they can still be hazardous to children. You'll want to keep all chemicals out of the reach of small hands.