Go to Seer's Village, walk south of the bank and you should find a field with some flax.
Pick it until your inventory is full, walk back to the bank and deposit all of your "flax".
Use bots for gathering skills such as fishing or woodcutting..then sit back and watch the cash pile up over extended periods of time. Or if your less patient merching though it's rather difficult.
Get yourself a bot for when you are not playing, be sure to trade over the wealth to your gmaul pure as often as you can, so you don't get your bot banned with wealth on there