G I Can Openers to the rescue! You get to the camp site and you are hungry and you think, "Great, lets have beans on toast!" as a quick, simple meal, you find the can and discover you choose the non-ring pull type and the can opener is at home on the side of the sink!
Worry no more - these GI Can Openers are small enough to go on your keyring for just that type of emergency, and are very simple to use.