For new update in runescape by jagex,you cant trade anything with nothing,so if a poor account wanna to buy some runescape gold ,how do ? The answer is through the Grand Exchange in runescape,like runescape item A's price in Grand Exchange is from 190K to 200K. then you can use the poor account sell this item as price 200K, then use a rich runescape account which have much runescape gp buy it. then use the rich runescape account sell this item A as price 190K,then poor account buy it,from this trade poor account will earn 10K,then use rich account sell a item B(if B's price is from 100K-130K) as price 100K,then use the poor account buy it,then use poor account sell it as price 130K,then use rich account buy it back,so this poor account earn 30K RS Gold. For what item will be better used to delivery runescape money u need to think about by yourself.