There is no way to actually get rich quick, but at lvl 135 I make my money from combat related things,
This is mostly godwars and corporal beast.
If you've never been to godwars then train urself to you are atleast 85+ Att, str and defence, try and start with bandos with a small Coinshare team.
If you mean quick-chat, you can't - just avoid the Quick-Chat worlds.
maybe getting rich quick ;]
Pyramid Plunder which gets REALLY quick at level 81/91.
You can be as old as you like to go on runescape but if you're under 13 then you will have to use quick chat.
Get Rich Quick - 2004 is rated/received certificates of: Australia:MA
Get Rich Quick - 1951 is rated/received certificates of: UK:U
it will say quick chat when u pick your world
Get Rich Quick - 1910 was released on: USA: 19 December 1910
Get Rich Quick - 1913 was released on: USA: 24 July 1913
Get Rich Quick - 1951 was released on: USA: 31 August 1951
Anything that is get rich quick will not work. Building a fortune takes time and patience as well as smarts. The only way you can get rich quick is if you win the lottery , or have a talent.
You are not actually restricted to use Quick Chat (QC), you are probably just on a Quick Chat Only World. Either that or Jagex have Included a Quick Chat Only Ban in the New Update in August 2011. Source(s) Knowledge with my combat level 138 RuneScape character.