Flash memory USB drives have become about as ubiquitous as floppy disks were back in the beginning of computing. At this point, most of us have a drawer loaded with drives that are just too small for today's huge file sizes.and#160; For those that do, there's an interesting use for those old USB drives: you can convert them into a dog tag!and#160; Several users on Instructables.com came up with the idea as a high-tech option for recovering a lost dog.and#160; Just create a text file or a document or even a PDF that provides instructions for contacting you should your dog get lost and copy the instructions to the USB drive.and#160; This approach allows you to provide a variety of additional info such as vaccination records, notes on the dog's demeanor, how it gets on with other pets and even if your dog has a microchip. Then add it to your dog's collar and wrap it tight to help protect it from the elements and you're good to go.and#160; Remember, a chipped dog will need to be taken to a vet to be ID'd, but with a USB drive anyone these days can use it to identify the owner.and#160;