This is a great caster profession. Keeping up your money from all those quests you do, you'll find that before level 12, most of your stuff will be tailored. However, keep in mind that, as you level, the tailored itmes you use will become more and more isolated. I think I have tailored boots, that's it. However, tailors are in high demand for making bags,
wow po so you'll get a good income from this profession.
Tailoring specializations
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.
Mooncloth tailoring (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.
Shadoweave tailoring (Shadow / Frost): Allows the
wow gold 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.
Spellfire tailoring (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.
(source: wowwiki)
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. You can also continue to make [Frostweave Bags].