Today PvP starts, arena starts up, rated battlegrounds start, and what is the first thing people will want? PvP gear.
Not only this, but people are starting to ding 85, and they're trying to get their item level up, so they buy any and all gear that will give them those last 9-10 points required to get into heroics.
Tailoring, blacksmithing and leatherworking have great sets which you can craft and everyone will want to use on their new level 85's.
Getting the Patterns Firstly, you need to go get all of the patterns for the emberfire set from the vendor, you will already have 5 of the 8 patterns taught by your trainer if you've leveled tailoring to 525.
The vendor is located in twilight highlands and you must complete a short series of quests in order to see the vendor.
You'll need level 84 to get these quests.
What materials are required for a whole set? (Tailoring Example) 72 x [Bolt of Embersilk Cloth] (tailoring) 360 x [Embersilk Cloth] 31 x [Volatile Fire] 31 x [Volatile Water] Looking at that list, I can say that's pretty cheap for an entire set of Item Level 333-339+ gear.
18 stacks of cloth currently costs me 2k, and the price for cloth is dropping fast.
The Volatile Fire & Water should be relatively cheap as well, only costing a tops of 5-600 gold total.
Once you have the whole set you can advertise in trade chat that you're selling a full & complete set of PvP gear, and you'll get tons of bites, trust me.
If you do not have enough gold to craft the whole set, craft single pieces.
Check the Auction House for the highest yielding piece and craft it, you'll have the gold to craft an entire set in no time!