i like the idea of a removable strip, but i was thinking that it would be made into the bags just like the red pull tie is. that way the consumers wouldn't have to worry about putting one on, or changing it. they could also be sold separately for other bags and they could be adhesive and maybe in a roll so you could cut off the size you need. AND they could be used for other things!! AND maybe change color when they have been soiled enough. just an idea you gave me Cathy liu!! thanks! -Sierra