Well, maybe the feeling silly part is because both the large SAK in my pocket and my "pen knife" (Midnight Manager with pen, light, etc.) on my beltloop also have can openers, and I have never opened a can with any of them. So it is not so much that I have something "useless" on the keyring as much as that I have 3 of them on me. <img src="images/graemlins/smirk.gif" alt="" />

But then, I have 5 knives, 4 lights, 3 pens and I do not know how much stuff distributed on me and rarely use more than one at a time of the duplicates.