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This is a brilliant concept! My family also suffers from a wandering loved one (special needs) and have had several very stressful times requiring Police assistance to locate him, which is a very difficult thing in such a big city. I agree with putting it in the shoes, as these are the only items we're guaranteed he will have with him when he is lost. Bags, jackets, hats etc can easily be left off by him. All the best with your mission!