Update since written :
There have been a couple of people posting about this tip for JC/Ench
I want to clarify, this guide is about making the whole process so simple you can just watch tv and press 1 and 2 alot 
or automate it....... and you dont need to buy glider!
Hi All,
Many people know about how easy it is to make money getting enchanting materials from Jewelcrafting but to get ALOT of money means making and disenchanting the items in bulk. I'm here to tell you how to automate as little or as much of this process as possible.
This guide includes what I am currently crafting but can be ammended for anything you like including tailoring for lower level enchanting mats.
This guide assumes that you have a Jewel crafter and enchanter as seperate toons as this is what I have. If they are the same character just remove the mail steps although this process works better with 2 characters due to bag space.
We are going to have one character with a bag full of Eternal Earth, and a quantity of any mix of :
Bloodstone
Sun Crystal
Chalcedony
Huge Citrine
Personally I pay up to 2g per gem and 10g per Eternal. I often get the gems for 1g each and eternals for 7g so this will expand your profit. How this breaks out has been covered in other threads but I'll put my calcualtions here anyway.
Each item you craft costs between 2g40 and 4g depending on prices as above.
You will get in return from disenchanting at least 1.125 infinite dust and 0.1 greater cosmic essence (by combining smaller) when looking at your bulk crafting.
So you can see that as long as your dust is going for more than the mats cost you will be in profit from the dust alone. The cosmic and any shards are a nice bonus.
What we need to do is craft some items.
There are 4 trained recipes that will be next to each other in your proffession book. These are :
Bloodstone Band
Crystal Citrine Necklace
Crystal Chalcedony Amulet
Sun Rock Ring
Setup :
Buy the raw materials and get them all in your bags. Leave about 5 or 6 spaces in your first bag to allow for mail errors.
Create a macro to get the Recipe Id for these to use in my crafting macro. Simply add the following macro to your actionbar, highlight the first of these recipes in your book (without any filters) and click the macro. This will tell you the value to use in the craft macro. My recipes are 119, 120, 121 and 122 but this will depend how many recipes you know. Please bear in mind if you use a filter then this will change. You will only need this macro once.
Code:
/script local tradeSkillIndex = GetTradeSkillSelectionIndex();
/script SendChatMessage(GetTradeSkillSelectionIndex(),"SAY");
Create a macro to break out your Eternal Earth into Crystallised Earth. This is to save bag space and only break out 1 at a time.
Create another macro to craft the items:
This will give an error as it tries to craft all 4 but dont worry it saves you time 
Code:
/script DoTradeSkill(120);
/script DoTradeSkill(121);
/script DoTradeSkill(122);
/script DoTradeSkill(119);
Create a Macro to mail the item to your disenchanter :
Code:
/script MailFrameTab_OnClick(nil, 2)
/run for slot=1,16 do
local texture,itemCount,locked,quality=GetContainerItemInfo(0,slot)
if quality==2 then UseContainerItem(0,slot) end end
/script SendMail("NAME OF OTHER CHAR", "s", "")
/script MailFrameTab_OnClick(nil, 1)
Now add your crafting and mailing macros to a hotbar (on mine its craft on 1, mail on 2 and break eternal on 3).
Open the mail window and leave it on the inbox pane.
Open your crafting window without any filters on.
I Personally use a script to automate all of this which does a craft and mails it 5 times and then breaks the eternal and repeats.
-------------------------------------------
Now for disenchanting :
In a similar manner we need 2 macros, one to get the items from the mail and one to disenchant them.
getmail:
Code:
/script CheckInbox() for m = GetInboxNumItems(), 1, -1 do
TakeInboxItem( m ) end
disenchant:
Code:
/cast disenchant
/use crystal citrine necklace
/use crystal chalcedony amulet
/use sun rock ring
/use bloodstone band
I havent automated mailing the mats to a bank alt as I like to see how many I got after a batch but this would be easy to do and I can add it if you wish.
Just make sure you have ALOT of bag space on your disenchanter.
Again I have an autohotkey script which presses 1 to grab the mail and then 2 to disenchant the item so this process is fully automated.
I make alot of money with this and the only thing holding me back is the availability of gems because the Enchanting market is still going strong and will only improve with Ulduar.
Remember all the gear getting dissed only gives a couple of dust or a shard for high level but the new item requires an enchant which will need multiple dusts. This will keep the market strong for a long time to come 
If anyone has any feedback then this will be more than welcome.
Please dont link the threads that tell you the items to make. I know this has been covered. I'm telling you how to automate this down to a couple of button presses or even how to set it up so you can use a script.
I have not included the script as this isnt the botting section but I can if people are interested.