I used to find out a way to increase any skill with making money although sometimes it bores me a lot!! all skills : Combat (Atk,Def,Hits & Str): Killing KBD's or Kalphites with my friends and sell the good lot !(upto 12 mil an hour sometimes) Magic: PK with my clan (upto 10 mil an hour) Prayer: selling Dragon Bones (around 100k an hour) Range: Use Cannon at Fire Giants (i only used to get like 300k an hour while my friends get like 2 mil an hour somtimes) RuneCrafting: Make laws or nats (120k an hour) Agility:only non-money making skill Herblore: make super sets and sell to player killerz (375k an hour) theiving: theive from high levels and either sell the loot or keep it (as little as 100k an hour) Crafting: seling red dragonhide fulls (upto 400k an hour) fletching: high alchemy magic longs (upto 2 mil an hour) slayer: seconf non-money making skill lol mining and smithing: mine rune and make rune scimmys(upto 500k sometimes) fishing and cooking: selling sharks (upto 3mil an hour sometimes) firemaking: another non-profit skill woodcutting: cut magics and sell em (400k an hour) farming: plant ranarr seeds and sell the ranarr weeds (150k an hour) NOTE: those profites per hour varies between players and those are the highest prices i have reached doing that particular thing.