I have three of them... And two S.O.L.'s Sue me; I'm forgetful so I like redundancy.

They all get Micropur tablets.

One lives in my jacket pocket. I've added a tiny SOG Micron folder. I used the safety pins from this one once to attach our numbers when we did a fundraiser walk on the DC mall. It is kept company in the pockets by a disposable poncho, large Heatsheets, and an AMK Pocket Medic.

Another lives in my PSK (details linked from my signature line).

The third lives in an outer pocket of my BOB. Should I somehow completely lose my EDC gear, this and the other things in that pocket will bring me back up to snuff, with a little extra thrown in.