Not sure if this has been brought up yet, but having read the first 50 posts i'm surprised that the OP hadn't come to the realization that there are a lot more gil generating activities than she may well be aware of. For example, not once did i see leves brought up. The level 45 goldsmithing leves in uldah require you to craft and turn in Electrum Circlets (Amber) to an npc and as a reward you get 33K exp, 750gil and 6 electrum ores. As a miner, I gather my own electrum and amber and craft them into circlets. Turning each circlet in takes the item out of the game in exchange for 750 gil. This is just one gil generating activity you have neglected to take note of. As a bonus these crafting leves take items out of the economy which should help to curb the supply of raw materials, components, and end products in the economy.