Not sure if it was already discussed, but would it be possible to add empty crafting supply bags to the different crafting vendors?
I'm thinking o Dvergeheim's forge in particular for mined mercury, but it might(?) be useful elsewhere.
Cheers
Does the mined mercury not go into the empty Miner's Sack you can buy already?
The cinnabar ore goes, but the mercury doesn't. That could also be a solution, to allow the mercury to go on the miner's bag.