Azeroth paid a terrible price to end the apocalyptic march of the Legion’s crusade—but even as the world’s wounds are tended, it is the shattered trust between the Alliance and Horde that may prove hardest to mend. As the fires of war continue to roar, take the battle to both new and familiar lands with the Tides of Vengeance update, and join your allies to champion your faction’s cause.
Simply put, its about expectations. Transmog is not a get rich quick scheme. You won't wake up the next day to a mailbox full of gold on day one, two or three. For most of us, it will take months to get to a point where we have to refresh our mailbox to get to the rest of the gold. Our expectations are high, and the initial results are rarely ever in the same ballpark. A few days or weeks of less than stellar results and we give up, because we lack patience. If you want/need gold now, transmog is not the solution.
1. Don't just take anybody with some gold willing to go. Make sure they at least have some heroic gear or better. Bringing someone in greens not only hurts your chances of killing the bosses, but these players often anger those who are in better gear that need one item and then get outbid by some "noob". You are looking again to establish relationships and repeat customers!
A cool little pet farm that can take minutes or ages depending on the god of luck.  This spot contains some of the most dense troll spawns in the game, and each has the highest chance to drop the parrot pet thats soo sought after.  On every serve rthis per has  amedian value of about 70,000g so picking one up can be a pretty cool feat.  Like the sprite darter hatchling spot its, a random farming spot that requires alot of RNG to pull off, but if you get it to drop you can make out in spades.  The other drops are miniscule when compared to this spot.
SSC has been known for it's abundance of pet drops, which is why this farming spot exists.  It can only be done once a week by each of your characters, so make sure to hit it if you can.  Generally you'll want to kill all the bosses for a chance at their rare pets.  Everytime I go, I have the luck of getting one, in the video I actially got the Tideskipper to drop, and a video I done on the spot before that, I got the tainted waveling.  So yeah. It's a pretty awesome spot with high rewards and also some world drops.  I was able to snag a will of edward the odd as well, totalling a nasty 35,000g.  The most important part is that you kill the bosses, the pet drops do sell, and they are very easy to get.  Well worth the time invested.
Now lets get to a "math". You need 10k reputation for a cache. For a daily emissary quest, which gives the rep the fastest way you receive 1.5k reputation. Since the quest needs 4 of the world quests for said faction, lets total them up to 500rep which gives 2k reputation for an emissary cycle. Lets optimistically say that you require 3 minutes to reach a world quest and finish it, totalling at 12minuter per 2k reputation. It would mean that you spend an hour total on a chance to get up to 5k gold. Ofcourse there would be some exceptions to that, such as tortollan quests that need only 3wq, rare quests that give extra rep and more rep in general or for example follower missions for extra rep (but those require resources). But there is also a fact that you might take more than 3 mins to finish a wq which negates that.
This farm very much resembles the Dire Maul farm in that it allows you to hit multiple markets without having to do too much.  You can mageweave, runecloth, greens, world drops, and herbs all from this one single spot with the addition of countless transmog items.  I personally love this spot – however I feel I stumbled upon it a little to late.  The benefits is that this is the LARGEST instance in the entire game – literally.  You can spend up to 15 minutes pulling the entire instance.  You are rewarded however with an abundance of drops of all kinds. You can quickly fill up your inventory here.  If you need greens form the 47-51 area, this is your spot.  As mentioned, you will also get soo many trade goods that it's hard not to fill even the biggest of bags.

If i start on a new realms, I am farming a lot of transmog from classic and Burning Crusade Dungeons and Raids. In the beginning, i start to post them if they have at least a DBRegionMarketAvg (Average value of an item on all EU realms of the last 14 days) of 500 Gold. All the other items get vendored. The time you hit a stock of 1000 Items, my value treshold raises to around 2.500 Gold. All the items below that value get vendored aswell. Newly farmed items that are above these treshold will be listed. Why? If I start over somewhere, I want to get a certain amount of gold quickly. Cheap items are great for that. Later on, to save time, Quality is better than quantity. As mentioned above, re-posting the items on the auction house takes quite a bit of time. At this point, I can recommend you the TradeSkillMaster AddOn, it makes your auction house work really a hell of a lot easier.