Power leveling is the term used to describe the process of leveling a character as rapidly as possible with the least amount of play time. It can be used from any level up to level cap. Contrary to what many believe, efficient power leveling does not require endless hours of grinding. The best methods of power leveling involve doing many quests in an orderly fashion.
Also get the Heirloom Mount. Being able to have basic riding speed from the beginning will save you a lot of time if you're starting from level 1. Allied races start at 20, so this is a non-issue for them. It's important to note that Pandaren can not use this mount until they finish their starting zone and pick a faction. Being Horde or Alliance is a requirement of the mount.
Second: I have found that the most effective way to level (which comes as no surprise to many) has been using the leggos KJBW and Sephuz’s. KJBW allows you to complete nuke down packs of mobs no problem on a 75 second cd and since the damage doesn’t fall off you can clear 10+ mobs in seconds.Edit KJBW has been nerfed to do half the damage that it normally did. It is now a 3.2k Nuke on 75 second cd that doesn't fall off. Though it is sightly more balanced, that does make me sad. I still believe that it is probably the best leggo still to level with but I will do some more research to confirm. Sephuz’s is nice for the MS boost and the proc is no joke. I highly recommend these for every class.
Some players like to try to game the auction house to make gold by buying things for low prices and crafting them into more valuable things, or simply reselling them at higher prices. You can also use large amounts of gold to buy special luxury items like very expensive vendor mounts that carry portable auction houses and repair vendors. Sometimes you can find special mounts that were exclusive to the Warcraft collectible trading card game that was discontinued in 2013, though many of the most desirable ones, like the Spectral Tiger and the Giant Rooster, are very rarely sold on most servers, and go for the maximum price of 10 million gold.
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