Keep an extra dog leash in you car and when you see (and you will) see someone looking for their dog or trying to get their dog home without a leash, stop an give them your spare. They will truly feel like a miracle has just happen.
If you have ever lost your dog and then searched for them, without a leash, you will realize the impact of this RAK. We have done this for less than a year and already given away 3 leashes. One incident the dog got excited so I stood a ways back and told the owner I would just set the leash on the sidewalk and then drove away. He was then able to get the leash safely. I am telling you, once you have purchased the extra leash you will be amazed!