With Cataclysm coming up, the world that we play in is changing completely. Some things we remember from days past may not even exist anymore, and some things may change altogether. So I am keeping a list of (more or less) six impossible things to accomplish before Cataclysm. It keeps me occupied when I'm not raiding, and each time I finish something, I add something else to the list. The three achievements above were all on my list, I've replaced them with Attumen's mount from Karazhan, the tiger from Zul'Gurub, and I am contemplating whether or not trying to farm for warglaives would be a good idea.
Each time I manage one of the impossible things it feels like I've accomplished something, though the merits of having accomplished anything substantial in a video game can be argued back and forth. Still, it keeps me happy, and it keeps me busy. So do you have a list of impossible things? If you do, what are they? If you don't, what are you doing to keep yourself occupied?