The next time you find your best friend full of fleas take a salt shaker to your carpets.
For one thing, those pesky fleas have most likely spread themselves over more than just your dog. To keep them from spreading any further, sprinkle a handful of salt over your carpet and let it sit over night. The next morning, vacuum up the salt. Do this once a week for about a month to ensure those fleas stay clear of you and the rest of you house.