Believe it or not buying vials/vials of water can be good money if you don't want to do anything that involves combat or skilling. One way is to move your house to Talverly, teleport there, go south a few steps, fill your invent with vials, use dueling ring to teleport to castle wars, and repeat. With people buying them for 280-300 ea, you can make around 8k each trip that takes significantly less time than law or nature running.
