FWIW I carry a Victorinox Swiss Card in a business card case (The cheap case you get from the printer), A Brunton Lifecard in my wallet, and a Photon II on my keychain.<br><br>The Swiss Card is flat, non threatening, and was a service award from my company which doesn't hurt. The Lifecard is never seen unless I use the freznel lens for reading small print, <br><br> Now the Schrade Multitool I'm getting for my 10 year service award will probably not go over as well!<br><br>Chris