Remember it's all about the size. Bigger the box less chances are that you will have it on you when needed. Altoids tins were prefered because they had a low profile. Round tobacco tins were good as well but they were bigger althou round shape made them fit better. Also tobacco tins already came with a moisture seal strip so they were sort of waterproof. Otter boxes were great but thick walls made a container lil bulky and you didn't really got that much more of the space inside. If you find something that fits you than by all means go for it. Just remember to have it on you. Biggest disadvantage of tins like bandaids or altoids is that they are not really waterproof and when I carried mine I used it so frequently that the hinges were getting bent out of shape and I had to fix them all the time. I reevaluated my everyday carry needs as far as the psk goes and now I mostly carry stuff in small ziploc biohazard bags from the hospital. I really don't need fishing hooks, water purification tablets in the city and fire starting methods are kind of limited. My PSK is designed more to be a FAK, keep me dry and comfortable and all that fits into a clear plastic bag. It also alows me to see better what's inside as well. But mind you my search for perfect PSK container is far from over.

Question is:
Is PSK still a PSK if not on your body but in your backpack?