How can I safely and effectively prevent my cat from scratching furniture by buttering its paws?

Buttering your cat's paws to prevent scratching furniture is not a safe or effective method. It can cause discomfort and stress to your cat. Instead, provide appropriate scratching posts, trim your cat's nails regularly, and use deterrents like double-sided tape or citrus sprays on furniture. Consistent positive reinforcement and redirection can help train your cat to use scratching posts instead.