Jackson Galaxy is a big believer in keeping cats indoors and so are we. They will live longer, healthier lives.There are many who believe that cats cannot be happy if they are deprived of the outdoors - that is simply untrue.
That said, there are definitely simple things you can do to enrich their lives and maximize their "Mojo" while keeping them safely inside.
In this video he details the essentials for a happy and full indoor cat life.