Add Yahoo as a preferred source to see more of our stories on Google. Every December, it happens. You put up the tree, turn your back for five seconds, and suddenly it's a cat's playground. Or worse, ...

Every December, it happens. You put up the tree, turn your back for five seconds, and suddenly it's a cat's playground. Or worse, a tree-shaped war zone. Ornaments everywhere, one very proud feline, ...

When you buy through our links, Business Insider may earn an affiliate commission. Learn more The best cat trees ward off boredom for our feline friends by providing indoor playgrounds, ideal vantage ...