If you don't have any other cats already at home, though, I would strongly recommend that you do consider taking two kittens. Adopting or purchasing two kittens will be a very rewarding experience. They'll continue to learn from each other as they grow, they'll have companionship (because you can't always be around), and from a behavioral standpoint, it's a heck of a lot easier to bring two kittens into a household together than to get just one and decide after he's an adult that he needs a buddy. Adult cats are territorial and introducing a second cat takes finesse. I can't even count how many owners of adult cats have told me how they wished they'd adopted a second kitten when they had the chance.