Dang, I thought there was an easy foolproof set of quests to get gold from. The house in Solitude is 25k!! My best gold was from some daedric quest where the area was strewn with already killed corpses, each yielding 25-125 gold, mostly around 100 gold each.

Also, another glitch: while doing some quest, I ran into two NPCs from the main storyline (you're supposed to meet up with them somewhere). They immediately start following me, even though we're nowhere near the agreed upon meeting place, so besides my usual companion Mjoll the Lioness (best follower in the game as far as I've seen) and the follower I got from the quest I was on, I had 4 high level NPCs running through this quest with me, kicking everything's ass that got in our line of sight. Unfortunately it was cramped quarters so they ended up hitting each other and then fighting until we entered a new area and they'd stop attacking each other.

I didn't want to risk messing up the main quest so I reloaded and avoided running into the two.