I've found that coarse salt (pickling salt) works wonders for keeping them from sneaking underneath doors...just,lay a line (not necessarily heavily) along the bottom of the exterior of any doors that you notice them sneaking under. Reply
I've found that coarse salt (pickling salt) works wonders for keeping them from sneaking underneath doors...just,lay a line (not necessarily heavily) along the bottom of the exterior of any doors that you notice them sneaking under.