I'm a collar freak. I have everything ranging from really tiny 1/2" collars to 3/4" leather collars (but I have a 16lb dog). The thicker collars I do not leave on 24/7 ... only for "show" if we are going out somewhere. I like using the regular nylon collars that are about 1/2"-5/8" in size for tag collars to keep him all day long. He has a
Fetching Tag attached at all times. I do take it off at night a lot of times simply for comfort reasons.