Bopeep! I saw this comment and HAD TO chime in because I feel your pain! I bought this Grannicks Bitter Apple spray because my mongrels chew evvvvvvverythjnnnggggg up to shreds...was getting desperate because of the wasted money! It worked!! No shredded beds, blankies, anything since I started using it! We were pretty diligent about spraying things heavily in the beginning to make a big statement, but now I spray maybe once a week just to maintain.. the bottle will last forever. Try it! It’s about $5.. Grannick's Bitter Apple for Dogs Spray Bottle, 16 Ounces https://www.amazon.com/dp/B00028ZMEO/ref=cm_sw_r_cp_api_YJyVBbD646TX8