I agree, the file/cleaning tool on the S4 and the Micra are the most comfortable and usable of any I've ever tried. I would love to carry a P4 for the pliers, but I just can't give up the nail file.

I have a couple of spare Micras now that I've worn out the scissor springs on, I may remove the bulk of the tools to make one of those key carriers, but I would definitely leave the nail tool.