Personally I have mining and herbalism, and a fairly high cooking skill.
I do the cooking daily quest every day (10-13 northern spices assuming you're using the dalran award to buy spice) Make food with the spice and sell on AH
I fly around in stormpeaks farming minerals and herbs and making titansteel bars when ever the CD is up.
and I just remembered something else I need to post
But I've been sitting at a steady 8k gold now for while just doing what I said