[DrKvothe]

If you plan on sitting in EC a lot on your character, bothering with certain tradeskills up until the first useful item is trivial can be great additional cash. For example, it's really not terribly expensive to get high enough alchemy to make SoW, invis vs undead, and shrink pots, and those provide fairly passive profit whenever you've got an item to unload in EC.

Another example would probably be the 10 slot bags and bearskin bags from tailoring. You can hunt the mats yourself at low levels. For a melee, you want to turn all of your loot into new gear like weapons and haste items, but as a caster you just need ~1k pp worth of jewelry, which you'll pick up pretty quickly.