This method involves skinning [ITEM]Cobra Scales[/ITEM] which on my server go around 25g+ each, this varies in different servers, but it should go over 20g+ per.
This isn't anything clever, pretty much common sense, but some people don't know about this spot.

There are creatures called Twilight Serpents in the hills near Twilight Ridge.


There are 2 other spots for farming [ITEM]Cobra Scales[/ITEM] as well. Both in Shadowmoon, but this is the best because:
1. Decent respawn rate
2. No adds (except birds that seem hostile, but flee when you come near them.)
3. The highest rate for [ITEM]Cobra Scales[/ITEM]
4. Chances for epic / rare drops.



I usually grind this place for a hour and make around 8 - 10 scales always.
Hope this helps.