No matter how clean you think your home is, think again.
Everytime you walk in, literally, you're bringing in dangerous bacteria and micro-organisims.
Yes, you, ladies: Your purse and shoes are the culprits.
Dr. Charles Gerba, a germ expert with the University of Arizona, has done some research into just how dirty these two very fashionable items actually are. Click the audio link above to hear his findings.