How to earn more coins?

I don't see how I'm supposed to be able to afford anything decent on characters that can't do anything but one-a-day and 3 PQs.

Yeah. Unless they come up with some new events, we're pretty much restricted to a couple of the "Special" items (because they're untradeable). Everything else - scrolls, equips, recipes - has to be "farmed" on mules.
I seriously don't understand why Nexon wants us to play in this semi-exploitative way ("the man with the 50 accounts wins"), instead of grinding some kind of repetitive quest on one or two characters.