What's in your bag? / Everyday carry (EDC)

I do like to concept of having a 'key block' the jangling my pocket does annoy me a bit, but still its tricky for the reasons highlighted above.

I got this for xmas:

Which has already proved to be very useful.

Great thing about them is they get through airport scanners....if for any reason you want to keep it with you! ( I do cos i often need a knife to cut tie-wraps on Peli cases in a hurry when I arrive somewhere....)