Ok, today I've been trying out merchanting, I world hop to random worlds, sit there saying "Cyan:buying all coal 160 each--bionisam" then after I don't get any trades for a while I switch worlds. Like this, I get a profit of 20k for every 1,000 coal I move (Buy + Sell). so far, playing for about 2 hours today, I've gotten about 5k coal, a profit of 100k. Anything I'm doing wrong or could do better?