If you like to PVP you can sell greater celestial essences (400 honor) for generally around 89-120 gold depending on your server. I sell 50-100 a week on mine from doing my daily random BG (500 honor) and any weekend BGs. Just something to think about if you are capped for honor already. If you are a PVEer you can sell JP and VP BOE items. So make sure you do your RDF each week on each toon.