If you already have a high level character or a friend willing to give you gold then you can purchase Heirloom items. These items are bound to account and are accessible through the Heirlooms tab using Shift+P. The benefits of these Heirloom items is that they scale with your level keeping your gear up to date without you having to worry about upgrades, and they provide a significant XP bonus.

From my experience on the Beta as an enchanter/tailor, scrap every trinket (and maybe rings). Trinkets seem to always give expulsom and it's needed in the higher enchants. Scrap any cloth green drops for the extra cloth, but other gear and blues and purples disenchant for the mats. The scrapper seems bad at the return on some items. I'd scrap old Azerite armor and get some cloth and a bit of thread.
We're able to provide a power leveling serviceas as soon as it's available. Such as with the Burning Crusade,we provide a cheap service for any level through level 70. The price of the two new races (Blood Elf and Draenei) is the same price as the original races. It is an unimaginable price. We are sure that you will be well-pleased with our prominent service.
Before anyone asks - yes there are archived copies of old addon versions both on our github repository and on several of the addon sites we use, and these will continue to be available after Cataclysm comes out, so you'll be able to get those old files if you really want them. I'm not going to bother making these more easily accessible unless you give me a very good reason. "I'm on a private server and I need them since we didn't upgrade to Cataclysm" is a BAD reason - and it's illegal.

In 2015, Blizzard started letting players buy gold from each other using WoW Tokens, to try to control the process and mitigate damage. “Time is money, friend — but sometimes one is harder to come by than the other,” Blizzard says on the official page. “Now World of Warcraft players can use the WoW Token in exchange for game time or Battle.net Balance!”