Where To Spend Your Currency!

so Gil works with most merchants and trading with other players

Company Seals work for the company you got them under...
for barding or various armor all unique, un-meldable and un-convertable

I have started getting Allagan Tomestones, but I don't know where to spend them or what you could get with them.

Allagan Tomestone of Mythology
- Earned in Hard Mode primal fights?
- Used for AF+1 / AF weapon acquisition?
- Spent where???

Allagan Tomestone of Philosophy
- Earned in 40+ dungeons
- Used to buy ilevel 60+ gear?
- Spent where???

NPC at Revanants Toll is a group of 3 NPCs
Mythology is for Relic armor and accessories

Philosophy is for Darklight gear and the final item for relic

You can turn them in to one of two vendors at Revenant's Toll, one sells gear for Allegan Philosophy Tomestones and the other vendor sells the Item Level 70 job gear for a different type of Tomestone. I forgot what it was called.

now if only they'd release an equivalent set of darklight that lets you hide the helm! I hate looking like a robot :(

Isn't it in character config where you can change it to where you never show your helm?

Yeah small button above your gear.

next question about currency! I heard some people say the bomb ash / wet bomb ash could be exchanged for gear somewhere... where is that?

It doesn't work for the tank set since the helm is built into the body.

Wet bomb ash is used for the event gear from starter towns

I think the visor command works with the DL armor? Not sure.

You can't.