Spend your time leveling one or two skills instead of spending your time developing all your skills at once.
Merchanting involves buying items at a low price and selling them at a high price. Stay patient and wait until you can buy items at an extremely low price. The three most common ways people make money playing Runescape are mining, fishing and woodcutting. However, merchanting is one way players can make money without developing their skills. After you have killed hill giants, sell your big bones to another player for around a few hundred gold pieces each. Merchanting is the only way to make a significant amount of money without buying runescape accounts with high level in a particular skill.