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1. the first way is by completing rune mysteries quest once completed you can start mining for rune essences get about 1000 or more rune ess. then sell in grand exchange then you will get 55k or 1mil. out of all your hard work. (note: it does work as i tryed it my self - more rune ess. you mine the more money) =D
2. the second way is by cutting trees, oak, willows and yew then selling it in store / grand exchange. and you should get loads of money.
3. the third is by catching fish, then cooking the fish, then selling in store / grand exchange. and get loads of money.
4. the fourth is by going to Port Sarim, west of Draynor village, and ask one of the people in the blue uniforms to go to Karamja and pay them 30 GP. When you get there, walk off the dock and you should see a house. Enter the house and talk to a man named Luthas. He will ask you to pick bananas. Answer "Yes", pick bananas, put them in the crate, then talk to Luthas to collect your moderately earned 30 GP. If you would like more money in multiples of 30, ask him to get another 30 GP for doing the job again.
5. get to level 20 mining and smithing Go to Varrok and mine iron, then go to a smelter and smelt them into bars. You may have to do this repeatedly, as ore only smelts 50% of time. Then, go to back to Varrok and smith the bars into short swords. Sell them in market / grand exchange or at the sword shop. Do this repeatedly to get a good amount money. This is useful for low level players. who can make money - and get higher lvl
