Finished the main quest, companions, college of winterhold, thieves guild, and the dark brotherhood. I've bought a house, married the priestess from the temple of dibella, and hoarded everything I could get there. Done the drinking game in Whiterun, the beggar in Solitude, and the haunted house of Markarth side quests but those are the only ones.
My question to everyone is what should I do next? I'm not about to start a new character or anything, so what else do you recommend I do with my time in Skyrim? I have until the end of the week which is move out date for the dorm. After that I'll be away from it for a month or so, probably power playing Diddy Kong Racing, Zelda Master Quest and Ogre Battle 64.
Most satisfying thing for me in the game so far was carrying out Dark Brotherhood missions as a Werewolf.
Especially
*The quest where you had to kill a bride at her wedding. No better feeling than rushing in as a snarling hunk of fur, clawing up all the wedding guests, then bounding out of the city gates only to return a minute later stark naked and no one the wiser!