this is just me giving a little advice.
when you're a rogue and reach he lvl 40s and up, I have found it a good idea to change from skinning to something like mining or enchanting because getting skins is much eaiser at a lower lvl so if you have alts give skinning to one of them so you can just mail the skins to your self.
and then you can just buy the other mats you need for your higher lvl recipies which is probabaly what you'll end up doin anyway so get a head start up on it.