WoW Professions Tips

Tips

Buy stacks of Profession components from other players. That is faster than collecting them on your own! Have your friends save up components too.

Devote a certain bag to carrying your Profession items. You can even pick a different-colored bag if you have one, to make it easier to find.

Know which classes will need the products that you can create with your Professions:

Mail: Warriors, Paladins (Hunters and Shaman can start wearing mail at level 40)
Leather: Rogues, Hunters, Druids, Shamans
Cloth: Mages, Priests, Warlocks

Know which Profession components to save while you are fighting. You can sell them to other players or give them to friends, rather than selling them to the merchants:

Blacksmithing: jewels, metal bars, linen, wool, leather...
Engineering: jewels, cloth, leather, mechanical items, metal bars...
Leatherworking: leather, ruined pelts, hides...
Tailoring: linen, cloth, wool, silk...
Cooking: meat, various monster parts...