Making Gold on World of Warcraft?

ok if your level 55 this isn't that easy than kinda. Good that your a miner but if your not good at being a blacksmith switch it to skinning and all your skin and rocks you get sell in the auction house for like 3 gold a set (20 is a set) and if your level 55 help low levers and make them pay gold u won't believe how much gold level 1's have thes days lol