I've got a pouch on my belt with the following items:
-a firesteel
-victorinox huntsman (knife,scissors,saw)
-motorola C115 mobile phone (cheapest I could find while still good battery) in zip lock bag to waterproof it, I can still talk easily trough the ziplock bag.
-a matchbox made of shotgun shells
-a keyring with 3 keys (I try to avoid keys though, have numeral lock for bike etc)
-a bic biro (to fill in my trainpass called a go-pass)
-a bic lighter
-a Fenix L0D CE torch using 1 AAA battery.
In my trousers pockets I've got
-my wallet
-a snot rag
-a Camelbak Buff scarf (got it as present, wouldn't ever buy the overpriced thing it is).
I don't carry anything where I can easily strike the firesteel with (can use the back of the SAK saw but not very easily + damages the knife a bit), not even the back of my Mora blade works as it's rounded off a bit (opinel back works good). So I think I'll leave that out in the future. I think my firesteel (from BB groupbuy) is a bit hard, while most are softer. Maybe I can find a good striker though.
I'll probably leave the lighter out as well as I only carry it to light cigarettes (my matches would run out too fast), and I've decided not to smoke too much anymore. Lighting a real fire I mostly use matches.
I very often carry a shoulder bag or rucksack with me. With some plastic bags to collect stuff in. Also often a german poncho when it's changing weather.