Polishing your pearly whites is an important part of your hygiene routine, but the very cleaning tools you use to brush could be spreading more germs than they eliminate. One-third of the household toothbrush holders studied by NSF had Coliform present—an indication that fecal matter may be contaminating the surface. Scrub, scrub, scrub to restore your toothbrush holder to a sparkling clean. Let it sit in a cup of vinegar for about an hour, then thoroughly rinse and dry before returning toothbrushes to their proper place. Prevent recontamination by practicing good hand washing and storing your toothbrushes a safe distance from the commode.