Microchipping your pet...
Hi Tom,
It's good to hear that you love him so much and that he's not just a money-maker to you - I like people like you. If you have him neutered he will be less likely to roam or jump over fences, too. The microchip used for dog ID is the size of a piece of rice that is inserted just under the skin, usually between the shoulder blades and you can't tell it's there but when a dog is found, people take them to vets and/or humane societies (hopefully) and they have "readers" that pick up your ID information. Collars can be removed by thieves or just in the dog's normal play but this is how the pomeranian I lost was found as he had lost his tags. It's a great back-up plan. Vets do it for around $65 and humane societies way cheaper. I swear by it after the pain of losing my friend's dog that she had microchipped. Even the humane society knew from their records that he had been "chipped".
Becky
P.S. Another thought. It's good to have good, recent photos too, so that you can make fliers to post around town. The pom I was watching had been shorn and didn't look anything like the photo she had on hand. :(