First of all, the value of transmog is decided by rarity and how they look. Some items like Minenarbeithut der Tiefen or Pendel der Verdammnis (they can drop in Uldaman) are worth millions of gold. They are worth so much, because they have a really small chance to drop. Other items are bought well because they look good. Best example in this case is the Glorious set, its legplates Glorreichen Beinplatte reach a 100.000 Gold value easily.
Using the Looking for Group interface, or joining a good guild, and doing instances that are around your level. You'll learn valuable grouping skills, and the level of loot in an instance is typically much better than what you could find on your own. If possible, concentrate on instances with humanoid mobs, since selling the cloth that they drop is a good way to make money.
I generally hate this farming spot, although I remember alot of farmers coming up big here. For my liking the drop chance on the sprite darter hatchling is very low and I couldnt ever come up with one during this expansion. HOWEVER, if you do get one, you an make out BIG - as this pet is non-existent on pretty much every server's AH. Did I mention it goes for a stunning 150,000g? Yup. Then add to the fact that many players LOVE this pet, especially girls for some reason... And you can make a big profit if you get one to drop. Honestly I hate it, it just rubbed me the wrong way. You can find it in new thalanar, on the very east side of feralas. Good luck.
The old popular example was the http://www.wowhead.com/item=47257. This item differed on my server from a high of 6k to a low of about 3k. When the price was down at 3k, I would buy a few of these and just wait a week. Throughout the week, I would put in trade and the auction house that I wanted 6k for it. I would then immediately go onto an alt and say that I only wanted 5200g. Sometimes, I would get the 5200g and be a very happy man, other times it would take more patience. However, almost always, by the end of the week, the other sellers had reposted for around what I wanted. This gave me a huge advantage. Now, the price ceiling was no longer 3k on the auction house, but 5k. I could now easily sell the few I bought for 4 or 4.5k, which is a huge 50% profit from the 3k I originally invested.
Get your item level as high as possible. Having the best gear is always going to help you when clearing content, so upgrading your individual pieces of armor will be important in the first few days after the expansion’s release. If you’re looking to get ready for Uldir, then you’ll want to be around item level 350 by the time that raid is released on Sept. 4.
If these tips are not up your alley, feel free to play the auction house as early as you have enough to buy one cheap stack of peacebloom. These low level herbs are fantastic sources of early income with little risk since everyone needs to level professions. Alchemists especially are popular every expansion because of the need for those high level trinkets that soar above even heroic drops. As a result, that peacebloom you bought for 10 silver now can easily sell during peak hours for well over a gold! This is a minimum of a 1000% profit! While 1 gold may not seem much, when you are selling 10 stacks at a time, those few hundred gold can go very fast and get you into the greater profit items. However, knowing prices on peacebloom and other lower level mats can prove difficult. This is where Auctionator finally comes in! Run a scan overnight on all your auction characters. You can now see whether or not a posted item is worth buying because of percentages presented next to the list. The major lesson to take out of this is to scan daily and see which items fluctuate greatly, as those are your rewarding items! Items that jump from 10s to 3g depending on time of day or uninformed buyers are a goldmine waiting to be taken advantage of. You can buy low and sell high, succeeding in the World of Warcraft stock market!
These books cost 1.000 Gold each and are sold from your BfA gathering profession trainer. As soon as you re-learned your farming profession, use this book and you will get back all of your lost Battle for Azeroth gathering ranks. Your gathering skill remains reset at 1, but you don’t have to care about that since you have your ranks back – thats literally all that matters.
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.
Most of the players make the mistake of only listing 30-50 transmog items on the auction house and then hoping to get half of them sold until the next day. Me and a lot of other gold farmers and transmog sellers do have 3.000-10.000 items on the auction house across various realms. It does not mean you have to do it that way – but if you have 1000 items listed, chances are higher you can sell up to 10 per day. With only 100 items listed, you have to be lucky to sell one. Of course, the sells are not guaranteed if you post more items. But i’m sure you have a lot more fun if you open your mailbox and 10-20 items are sold