Edit: 2 This method requires both herbalism 370 +and inscriptions 340-370 I believe
Im sorry if this is any repost of any kind in advance but...
I just realized that farming the Forest Rangers in nagrand give a lot of herbs that give off
Ethereal Ink - Spell - World of Warcraft
Etheral Ink, and the reason why this is so good for cash at the time being is that everyone is too busy farming in northrend or leveling a deathknight that they forget that TBC has an amazing spot to farm herbs to create deathknight glyphs
Theres numerous ones u can make from this that will almost sell instantly (Depending on your server) because of the high amount of deathknights. You can also do some research specific to your unique server to see what kind of deatknight is commonly used (Ie. Make a survey)
Not only does it help you make the glyphs, but in addition you get vendor items worth a ton of cash, and primal lifes which still may be useful to a lot of people. (Pre TBC enchants were still used long after TBC's launch)
And another thing is when you mill the herbs you also get Darkflame ink which can be used to make darkmoon cards or even possibly aid people in leveling inscriptions itself....
Might i also add if you are trying to grind for the Shattari skyguard mounts( edit: For the Albino drake acheivement) and are not neccessarily exalted and are in need of cash you can also use this method to get over 20 rep per kill
There are 4 spawns in the area, and normally you can solo them especially if your 71-72 and couldnt before. The only requirements to farm here is a normal flyer, and if you explore the area thoroughly you should find all 4 spawns...
Just an idea: If your waiting for the 4 to spawn because u kill them so fast farm waters/level fishing in the nearby lake.
Im sorry if any of you think this is a repost or that Im using common sense.... I just thought i might put this out there, Thanks for your time reading it and thanks for any critiscm