For this method, it is recommended you have a lot of cash available to you. You need to be able to buy rarer items, from Guthix Armour to even a Party Hat. This is also more dangerous, though with the risk comes a greater reward!
First, go to the GX Database, and find a high priced item. You are looking for an item that happens to be in a slump. If the graph shows that the price of a Santa Hat has been dipping to low prices, you should jump right on it. Buy a few of them, and wait until the price goes back up. That's basically all there is to it.
This is similar to the stock market. When the price of a 'stock' goes down, you start buying it. When the price goes back up, you sell it. Taking advantage of this wave of supply and demand is the key to being successful here. If supply goes above demand, the price of the item will go down. If the demand goes up above the level of supply, the price of the item will go up.
First, go to the GX Database, and find a high priced item. You are looking for an item that happens to be in a slump. If the graph shows that the price of a Santa Hat has been dipping to low prices, you should jump right on it. Buy a few of them, and wait until the price goes back up. That's basically all there is to it.
This is similar to the stock market. When the price of a 'stock' goes down, you start buying it. When the price goes back up, you sell it. Taking advantage of this wave of supply and demand is the key to being successful here. If supply goes above demand, the price of the item will go down. If the demand goes up above the level of supply, the price of the item will go up.