I have the short form in my wallet (the certificate looking one, not the long form, which is the bracket-fest). It's folded down to wallet-size and it's actually the original. Might have to get it replaced soon, it's starting to....decompose. I've had too many times when it was required that I have a second form of ID (doesn't happen every day, granted, but often enough). Thus I started carrying a second easy version. Nobody has ever successfully mugged me, and I don't lose important things like my wallet (nor my keys!), so I have little to worry about.