Leveling a crafting profession in Aion offers a great deal of fun, plus an opportunity to use up those gathered items and carefully hoarded drops. Crafting also gains you experience points. The professions available in the closed beta version include Alchemy, Cooking, Sewing, Weaponcrafting, Armorcrafting, and Handicrafting.

click to enlarge
While leveling a crafting profession is usually an expensive endeavor, Aion developers have designed a 'work order' system to help you out. After paying a trainer to learn the skill, you will be able to pick up a special kind of quest to gain crafting levels. The main ingredient for the quest recipe will be provided by your trainer, and any other necessary materials can be purchased for a little kinah from the vendor nearby.
You should be able to get 2-4 levels from each repeatable work order quest, and while the end results are turned in with the quest, you won't have to gather a number of expensive materials on your own. For those who have spare materials to burn, many of the craftable items sell very well to other players both in personal stores and on the auction house.