Yeah tha'ts what I do too, good times.For what its worth the second I went mercenary and took out a minor faction lord with 20 horse archers against his 50 infantry recruits money stopped being a problem. I just started mowing down the little guys and reaping the rewards.
I'm not sure money exists in a closed system in this game. It seems to come from out of nowhere. Like when you ransom prisoners.
I haven't noticed the no money in towns yet, I hope I can still give(sell) my towns food if they gots no money. Of course I would rather have a donation option since it's my town and my troops eating all the food.