The Devil being in the details and in need of being chased out, I like to begin with definitions. I have an urban everyday carry or UEDC, an urban personal survival kit or UPSK that contains no metal, and an urban personal first aid kit or UPFAK that contains no metal except some foil packets.

These are sized to all fit easily together into pants' pockets, though best in some kind of cargo pant. My thought is that they are with me whether or not I am separated from whatever else i am also carrying.

I do have slightly beefed up versions which I carry in non-urban situations, where I feel free to add metal implements.

I do not consider water to be part of my EDC, UPSK, or UPFAK, though I have the means to carry and purify some water in both my UPSK and UPFAK.

Of course, I live in suburban California which is not friendly to things like knives and have often had to go through metal detectors.