Do you guys have something that is totally optional and irelevant, however you feel the need to complete? I have one, and that is to keep my companions alive. Any quest that gives me a follower, I am required by nature to keep them alive no matter what. If they die, I reload.
The hardest so far was that idiot Farwil and his knights. That probably gave me 20 reloads, mainly because their tanking capacity is the same with wet toilet paper.