One can never have enough boxes when it comes to cats. My kitties would say they're fun, fun, fun! Don't cost much so it's affordable and I can always find a use for them.

Pros: Cheap

Cons: None

Cats love boxes of all kinds, cereral, soft drink, large or small. Cut some holes out in various places so they can stick their feet through to play with you.

Pros: Inexpensive, disposable, recyclable

Cons: none

My cat chews on boxes constantly! VERY VERY Messy!!! But a great toy to hide and play in. Sometimes he doesn't even care about other toys, just loves boxes!

Pros: Makes Cats Happy

Cons: Messy

I wish I knew where the pictures were. When our first dog was a puppy, we had him in a box with all of his things. He was quite comfortable.

Pros: Inexpensive "crate" when they are a puppy

Cons: none

My cats love boxes. In fact, many of my cats enjoy sleeping in them.

Pros: Great fun

Cons: Not the most durable