This is a fantastic way that i make gold farming easy selling often used items, for me cobra scales
Step 1: farm said item, get a couple stacks
Step 2: go to the auction house, look up your item buy them all out and raise the price 10g
Step 3: when someone needs the item they will pay you more money than they should be
on my server cobra scales went for 10g a week after i started farming the going rate was 30g i can farm 10 ofem in 20 mins in twilight ridge of snakes (on a good day) thats from 200g a stack to 600g GL and happy farming