After washing certain whites
Did you know that 60 percent of clothes washers are contaminated with bacteria? As if that weren't enough, underwear can harbor E. coli, and kitchen towels are prime breeding grounds for salmonella and other germs. So be sure to clean your washer and dryer when you wash certain whites! Zap germs by laundering those items separately in hot water (between 140°F and 150°F) and bleach—it's the only way to sanitize both your clothing and the machine.