k, buy a snail shell from steve for 1m, then npc it. Your money gain is: -999,999 meso.
But srs, the best way to make money if your really broke is to:
A> Kill sakuras (black cellions) making 500k-1m/hour about.
B> Buy scrolls from people in kerning, IM NOT SAYING SCAM THEM, just buy for cheap and then resell in a store. Of course a store is needed.
C> Become someone's bitch. I was one for a few weeks, the guy paid me 1m an hour just to loot items for him and stalk people. (He was a level 130 though.)