Quote Originally Posted by otakuryoga View Post
there is also the heirloom mount which lets you "get chauffered" around(basically it lets you mount before you can mount)..though i never needed it so dont really know how you get it
You get it automatically after buying a certain number of the other heirlooms (I forget how many.) AFAIK it's the only mount usable before level 20 so it can speed up your low-level questing considerably, if you don't mind the noise.