Even though our dogs have been micro chipped, we really would love to have affordable miniature GPS Tracking devices to put on their collars - just in case the neighbor gets really bold one day and actually tries to steal one of the dogs.  Microchips will help a lost dog be returned home, but a GPS Tracking device might help find a stolen one!  I found a great website that has all kinds of different tracking devices for all kinds of business and personal needs, but I haven’t been able to find one small enough for a dog though.  If you find one small enough for a dog, let me know!