Thank you for the suggestions everyone! I adore both of those sites! I think I shall need to buy extra, too. You know, just in case (accidentally ) our family expands, too.

Soni and Isis are indoors, too, but we have had one occasion too many with people "accidentally" letting them out. They actually prefer the collars over the harness and don't try to take them off. I am glad that they are breakaway so I know that they won't get hurt if they happen to snag on anything. The bells don't seem to bother them, although, I have caught Soni attacking his.