Ok here the deal, you must be able to mine coal.
Go to the Falvador Mines Located at the NE side of the kingdom and go to the coal ore section SW of the enterance, mine coal until you are full, then leave the mines to deposit the coal in the Falavador east bank;repeat to the process until you have 200 or more coal in the bank and withdraw at a note. then sell to coal at around 150-250gp each.Selling the coal at the Falvador east bank is preferred (I never had to wait more than 5 minutes for a customer). And there you have it!Runescape cheats.— You can always mine more coal to sell anyways, but that just how I do it. And!- A rune pick is preffered once you reach level 41 mining, which are usally sold at around 30-45k.(If you find it hard to get your hands on the coal becuase the area is most of the time crowded, go to a crowded world!!! people go to these worlds mostly for commerce and trade so there will be more coal to go around most of the time). Also if you have a low level in mining, I suggest that you go to the Al-Kindrad Mining site (located just east of Lumbridge and SE from Varrock) And power mine iron ore!!!—Resulting in more coal count in less time. Another thing is that once you reach level 60 mining you will be able to use the Falvador Mining Guild (just south of the Falvador east bank), but you can go in there at level 59 mining; how?— simple all you have to is buy a miners stout at the bar just across the street of the Falvador west bank, and the drink will momentarily level up once, which will result in admission to the guild. Inside the guild are hardily any people and tons of coal to go around and three mithril ore stones which can be minable and sold for the price of 300-500gp each.- A great way to get rich also. — MINING IS THE BEST WAY TO MAKE RUNESCAPE MONEY FOR FREE PLAYERS!!!—