Cat House Using Box. Add a couple of rooms to your cats home with the additional boxes. Then slice through the material.
Discard the house or fort once it has been damaged enough. After that cut the holes with knife. These cats love cardboard boxes probably more than how they love actual toys.
Making the cat house is the most productive way of using the boxes instead of throwing them away or letting them wear out.
Using the box cutter cut out your doors and windows. You get to put the idle bunch of old boxes in your house to good use. The larger the construct the fewer entrances you need to add. That will help dramatically in.