I have split my keyring in two. One holds my core equipmentt - whistle, Photon, Inka pen, parachord and keys - while the other holds stuff which is bigger or heavier. If I am wearing light trousers I leave the second keyring at home. The Inka is new, and isn't really a survival thing, but I found it gets used often enough to include in the core ring. The parachord is also not core survival but it's woven into a key fob that is very useful for telling the keyrings apart.
I also carry a wallet and Vic Rambler swiss army knife, which is very small, and an Orb Raw, again very small. I try to carry a lighter, too. Until recently it was a cheap Cricket disposable, but I recently bought a proper Sarome lighter which is just about thin enough to go in a back pocket. It has flint ignition and looks like it should be useful even after it has run out of fuel.
My watch includes a digital compass. I recently discovered some unused space in its buckle, which is big enough for 4 of the silver Puritabs. With that and the 1l plastic bag in my wallet I actually have a plausible water treatment system for the first time.
I have slimmed down my wallet a lot. I don't carry store cards any more - they are not worth the space. Nor do I carry the fresnel lens or mirror that I used to have in there. I do carry tinder and some writing paper. Also a Fisher pen refill, which went in there before I got the Inka and which takes so little room I've left it there.
My EDC continues to evolve as I find new toys, err, tools. I am better off now than I was a year ago. I still eschew the bulky stuff - I don't usually carry water, food or shelter.
Currently the main bulge in my pants is due to my pocket handkerchief. I don't bother to iron or fold it, I just stuff it in. That might be the next thing to change. Any suggestions, other than "iron and fold it"?
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Quality is addictive.