1. One of the first things to do, is to make sure that there are no obstacles and the cat can really get inside the penalty area. Many things may fall into the cat box, depending on where it is, laundry detergent bottles, baby bottles, clothes, books and bags of food, even cats. Checked regularly to make sure that the box can be easily accessible to the cat.2. Another very important thing to remember is that you should not put food and water in the immediate vicinity of the litter.