oh, you ultralighter, you.

I do like to keep it as unobtrusive as possible. And I note that yours is pretty ultralight, as well.

I have that same card tool, but never found it all that useful (kind of dangerous to use actually!). Now... the P-51 I could get behind. I have a few P-38s sitting around - I'll have to add one.
I've also though about getting another stainless peanut lighter to use the case as a pill holder (some claritin/ibuprofen, etc.)
Do you find you use the sharpener much?
i almost never use the card tool; it's there as my last resort backup in case i don't have any of my other knives for whatever reason.
you definitely won't regret adding the 51 to your keys. while i find many of the uses on the "1001 Uses" lists very unfeasible, it's still a handy little bugger.
i've use d the sharpener a few times. i'd like to replace it with an actual whet stone because it seems to be losing its grit.
Some folks appear to have some very well endowed sporrans, yet are missing one of the most essential items of kit for the urban and wilderness environment - Tissue Paper.
that's why some bloke invented the Tactkilt.
i keep a packet of kleenex in my glovebox and i usually carry a white bandanna/handkerchief with me, but it was in the was when i took the picture.