Today I visited one site and a lady said she lost her pet and found that pet hours later, because she had a pet tag and someone make a phone call-----,
Many people said that they lost their pets in the past for some reasons.
I still said that we shall do our best for the pets and make tags for the pets. In that way, people can call you if someone found your pet(s).
I found some cool pet tags sites these day, I think this is the coolest and nice one. You many like to look at it too:
*LINK REMOVED BY MODERATOR*
Good luck!