One thing I did (just for a couple of days, then it became boring) was really "roleplaying" in Oblivion. So I played this hunter and I actually went out hunting, ate the meat, went to sleep, etc. Like I really lived. No fast-travelling. I did some quests while roleplaying and it was really good fun. I rode from town to town, checked the time, went out for a quick hunt, bought a room, ate some venison and went to sleep and stuff like that. It wasn't fun anymore after a couple of hours, but at first it was pretty cool.
So I'm asking, did you ever try something like that? Did you ever play your character like he/she was real (with eating and sleeping etc.). Did you ever create a character with an occupation that you actually exercised (apart from mage,warrior,thief). Like a hunter or a merchant or a smith.
So what say you?