My current "meta goal" is to get 300 mounts. This includes getting essentially all of the achievements that include a mount (since I'll need to get those eventually anyway). One of these sub-achievements is to collect 300 toys, which again means that I need to get every achievement that awards a toy for similar reasons to the above. It just so happens that a bunch of professions have a whole crapton of toys that can be created that are Bind On Pickup. Since there is an achievement to obtain 800 skill in every single profession, this implies that I'd need a much of alts to get all of the professions. There is another achievement for hitting 110 on five different characters and, well, hopefully you see how a simple-seeming achievement like "obtain 300 mounts" can cascade into a mess of sub-achievements. Anyway, the upshot of all of this is that I have been grinding alts to 110 in order to max out their professions (a lot of the profession quests require lev...
A complete guide to doing every world of warcraft achievement, starting from nothing.