Thanks to the recommendations of somebody here (thanks unremembered someone), I got this cat leash and harness for my kitties. Pictured is my pretty, pretty Emma-belle.

It's interesting the personality changes outside. Roxie, who is normally very bold and aloof gets outside and wants to stick to me or find something to hide under. Emma, who usually loves nothing more than attention is very bold. In fact today, when somebody tried to pet her, instead of being excited somebody wanted to pay attention to her, she totally freaked out. They are still getting used to having the harness put on, but I think they will get used to it. And, I get amusement from the people that drive by giving me all kinds of second glances.