Flossing is the element of oral hygiene that is most neglected, and it's especially important to floss before bed to remove any food particles that may have become lodged between the teeth during the day. To floss correctly, use an 18-inch long strand of floss and wind most of it around your middle fingers so that only about an inch or two is exposed between the fingers. Gently rub the floss between your teeth, and curve it against each tooth to make sure you get any debris that may be at the gum line in the front and back of the tooth. Repeat this for all of your teeth. Flossing is a great way to remove plaque from between the teeth and the gum line before it hardens to form tartar, which is only removable with a professional cleaning.