European Forums 
 
Copied from WoW forums, where it was already a copy from someone else's post: 
 
What you need  
 
50 Rough Stones (AH Guide 40s)  
86 Copper Bars (AH Guide 5g85s)  
40 Linen Cloth (AH Guide 1g)  
30 Coarse Stone (AH Guide 2g)  
135 Bronze Bar (AH Guide 11g)  
60 Wool Cloth (AH Guide 3g)  
20 Silver Bars (AH Guide 1g50s)  
40 Weak Flux (Vendor) (35s)  
20 Heavy Stone (AH Guide 1g)   More ...

 
The title is the way it is for a reason. 
 
Low Level Quests 
 
Tormus Deepforge, Ironforge - Supplying the Front. Reward is the recipe for Copper Chain Vest, which is also a reasonably common drop, and therefore cheap at the AH. Deliver 6 Copper Axe and 6 Copper Chain Belt to Loch Modan. Requires: 72 copper, 6 weak flux, 12 linen cloth. 
 
Tormus Deepforge, Ironforge - Gearing Redridge. The  More ...

 
It is generally agreed that in WoW you can loot better drops than you can make for yourself, especially if you do instances. However, this isn't always true. If you keep up an appropriate profession, there are a few rare moments where you can be very well equipped with hand made items. Up to about 45, that is, although tailoring seems to be valuable to a higher level. 
 
But this is no good if y  More ...

 
(US forums, author Darksicarius) 
 
Okay. I decided to pick up engineering, Here's the guide that I created last night, trying to spend the least amount of gold I could. I must admit that it's about 70 gold for EVERYthing, But in the end, you'll have like 20-25 gold in your pocket. This is the Quick and Dirty way. If you can't keep up with the bill, I suggest getting mining, as it alleviates nearly  More ...

 
Taken from US forums, posted by Willhelm (and very useful). 
 
Raising Blacksmith Skill 
 
You will want to equip yourself and your friends as your skill rises. If you keep your skill at 25 plus five times your level then you will always be able to make items you can equip at their minimum level. Outside of the items you make because you want to, or to fulfill the Blacksmtih quests, there are   More ...

 
From the forums, can't attribute as it has been copied around a lot. 
 
"Here is the strategy I mapped out to get from 1 to 250 tailoring using as little cloth as possible. Couple of things:  
 
* This assumes you make bolts of cloth until you no longer get skill-ups for them. For everything else, you move onto the next level once the item turns yellow for you. (So this only counts bolts and orange s  More ...