[2020] What's the dumbest way you've made good money?

I've stood at portable wells withdrawing vials of water to sell on GE. At times this could make upwards of a couple million an hour. Good for noobs since no skill requirements. Won't see that one on the wiki money making guide.

I've also just picked up other players trash at black demons and abysmal demons (ashes, herbs, etc). Can make decent money running back and forth to the bank with other players loot.