I have found a safe way to prevent cats from scratching furniture and rugs. You mix Ammonia and water in a spray bottle and spray where your cats usually scratch.
Test a small area first to make sure it does not fade the colors on rugs and furniture. This has always worked for me. Cats will stay away they do not like the odor.
Scratching posts also work well. The rope posts are the best. Do not purchase wooden scratching posts. The cats could get splinters in their paws.
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