With the holidays over for another year, you may think you won’t have any more surprise guests until spring. Think again. Nearly a third (29 percent) of Americans have had a “visit” from one of winter’s least-welcome “guests” – rodents – according to a survey from the National Pest Management Association. In fact, these pests enter approximately 21 million homes each winter, and nearly half of the infestations occur in the fall and winter months.