The first step in getting rid of rats is to clean up outside. You should stack fire wood off the ground. Keep the outer areas of your home clean from debris and trash. Keep trash bins tightly closed. Do not leave pet foods outside, including bird food that is not in a high container. Once you have cleaned up outside you need to clean up inside.You open a cupboard and see chewed up bits of paper and little black things the size of large seeds. You detect a sweet, slightly sickening scent. You may even see bits of torn out fur, paper and shredded fabric with a hollow in the center. Your cat stares for hours at a hole in the baseboards. Your dog barks and scratches at the wall. You hear scrabbling and squeaking. By the time these signs appear, you already have a problem, but it can be fixed quickly and easily with a little effort. Read on to learn how to prevent rodent infestation.