Instructions
Learn a trade skill, such as Crafting, Fletching or Farming. Cooking and Fishing can earn you profits as well, but these skills tend to not earn money as quickly. By making items that other players want to buy, such as Armor and Weapons, your efforts can be rewarded more quickly.
Gather crafting items on your own rather than purchasing them from other players. Although it is often faster to buy stacks of items, getting your own materials not only saves you additional expense, but also has the potential to earn you some extra money as you defeat monsters and other enemies.
Sell items on the Grand Exchange. Before you put items up for sale, check their current selling prices through the Grand Exchange database on the RuneScape website. Make sure that your price is comparable to other sellers. You can also find a list of commonly bought and sold items within the Grand Exchange database. This will help you determine if your goods have a chance of earning you a profit.