Litterboxes are loads of fun. One thing they never tell you is that some cats WILL NOT go in them. While this is rare, it does happen. Another thing rarely mentioned is the issue of getting in the box and hanging the tail end outside. You can guess where it lands.
Some people like to let their cats outside.
If you do be sure to put a streachable collar with a bell on your cat. You want it streachable in case it gets caught on something and hangs the cat. A bell is important to warn birds and squirrels that a cat is approaching. Get your cat spayed or neutered. And yes, if you own a male cat you DO need to do this too.