With Mila I am using a potty bell and both of us find that very convenient. She has the chance to let me know whenever she needs to go outside for potty business and I benefit by not having scratched doors or “oopsie’s” in the house.
Choosing the right potty bell will depend on your dog. If your dog likes toys, in general I would suggest to stay away from those cute “toy-style” ones. Chances are high that your dog will mistake it as a toy and try to play with it once you leave it outside within your dog’s reach.
I made the “mistake” to order this one.
Mila fell so madly in love with that little blossom at the top that she tried to play with it all the time. Eventually I gave in and detached the blossom and gave it to her as a toy – to this day she loves and cherishes it.