If you want to level your Tailoring, you will need thousands of cloths
and cloths are not cheap. You can farm them or buy them from the
auction house, if you buy the Cloths you will need a lot of gold.
Tailoring is the best combined with Enchanting, because you will be
able to disenchant most of the items you make, however an Enchanter
friend can do it for you too. Check out my Enchanting Guide if you are interested in leveling Enchanting.
Approximate Materials Required for 1-450:
160 Linen Cloth
55 Coarse Thread
225 Wool Cloth
57 Fine thread
10 Gray Dye
760 Slik Cloth
30 Blue Dye
545 Mageweave Cloth
45 Silken Thread
60 Red Dye
106 Heavy Silken Thread
110 Rune Thread
80 Rugged Leather
10 Ironweb Spider Silk
725 Netherweave Cloth
30 Arcane Dust
20 Knothide Leather
2975 Frostweave Cloth - You shouldn't buy all of these at once
240 Infinite Dust
96 Eternium Thread
440-450 is not included, do the insane amount of gold and materials needed for it, and it's almost pointless to go further 440.
Tailors of lvl 60 or higher with a skill of 350 or greater now can
choose a Tailoring Specialization. Each of these three specializations
allow the tailor access to a number of self only recipes and will allow
the tailor to make twice as much of one kind of new cloth as a tailor
without this Specialization. Each specialization also provides recipes
specific bind-on-pickup cloth gear.
(Healing): Allows the tailor access to learn the patterns for the Bind
on Pickup Primal Mooncloth Set, and to create an additional primal
mooncloth at a moonwell.
(Shadow / Frost): Allows the tailor to learn the patterns for the Bind
on Pickup Shadow's Embrace set, and to create an additional shadowcloth
at the Altar of Shadows.
(Fire / Arcane): Allows the tailor to learn the patterns for the Bind
on Pickup Wrath of Spellfire set, and to create an additional
spellcloth in Netherstorm.
425 - 440
20 x [Frostweave Bag] - 120 Bolt of Imbued Frostweave, 40 Eternium Thread
You should make around 20 of these, it depends on your luck. The
recipe goes yellow at 430 and green at 440, but you should make these
because you will sell them at AH anyway, so you will get most of your
gold back. Don't flood the AH, only put in a few bags at once. It might
take weeks or even months before you sell all of them. Try to make Bags
for your friends, tell them to bring the materials for it.
Per Frostweave Bag:
90 x Frostweave Cloth
12 x Infinite Dust
2 x Eternium Thread
440 - 450
When you reach 440 you will be able to make new epic recipes, try to
find players who need those epic items and craft the items for them if
they bring the materials. If you want 450 that badly, you should
continue to make [Frostweave Bag]. There is only one recipe that requires more than 440 Tailoring skill, It's [Glacial Bag], you need Tailoring 445 for it.