Lady had similar issues when she adopted us.

She tore up tissues, boxes of tissues, rolls of toilet paper, videotapoes, you name it (including 2 pairs of glasses and a pan of brownies).

The fix was confining her when we weren't home and gradually giving her more space, combined with puppy proofing the house. The fun part was puppy proofing a house when the pup in question is a 70 pound bundle of muscle. We thought child gates would work, but we were greeted one morning by a wet nose in the bedroom. She just thought they were a fun obstacle.

Eventually she got over it when she realized that we WERE actually coming home, and she wasn't going to be abandoned to the mercy of the cats.