Everyone would like to save this money and even wants to be rich while playing game. Many world of warcraft players spend a lot of money on buying wow gold which is necessary to play in the game. There are two kinds of professions in wow profession and gathering profession. Most of time, you will pay more on crafting profession than you will get from them. But gathering profession will be more benefits of wow gold, even if you do sell your goods.

In addition, Deviate Scale Belts are always in demand and selling for 20g.Barbaric Bracers, you would not be worry about them as one is always selling for less than 40g. Skinning, minning and herbalism are the primary professions. Skinning is the easiest way to gather and also brings along least profit about wow gold. It won't be the best way to make wow gold until Outlands in most economies.
 
Until you are in mid 40's low 50's zones, herbs can be sold for good money. Due to the rumors of requiring herbs, Herbs maybe appear which are stockpiling and saving in a long time and the quantity is unknown. Mining can bring along profit quickly but the quantity is small. Herbalism can be more profitable. On an established server, you can sell a 20 stack of copper on Auction House for a wow gold or more.