Here is a great product to keep in your family emergency kit or go bag or to keep with you. Identakey stores medical records, photos, fingerprint scans and other information that is used to create a profile report, ID cards and posters when necessary. The only thing you need to do is plug it into your USB port and start up the software that comes with it. You don't need to do anything else. It's easy to use, affordable and you can make changes and update the information as you see fit.
This would also be a simply excellent idea if you have an elderly parent living on his or her own, particularly if there are any health issues.