the wrist band thing has bothered me for a long time... seemed to me to be one of those things that was just a way of screaming "look at me bike people!"
i can pull a caribeaner off my belt loop just as fast as you can get that goofy neoprene dealie off your wrist...

for a while i had one of my krypto keys around my neck... i'd filed the body/handle part of the key into a cross... but the chain broke and i lost the key... that was a bummer night...