Bob Martin's Pet Finder service is invaluable if you ever lose your pet. If you register with their service for free they'll send you a unique number on a free tag for your pet which you can attach to their collar. This number will only ever belong to your pet and if the tag gets lost you can get a replacement with that same unique number. If your pet is found, the person who found your pet can contact the call centre number on the tag 24 hours a day and they can reunite you ASAP. See site for more details. :-)
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