Money Farming Techniques?

I know there are alot of ways to money farm, I only know one. Where you open both SA-MPs and give money to yourself from one of the SA-MP clients. What other one's are there? I know you can also go AFK and gather paychecks while your at school or whatever.

It all depends on the server you are playing on. The script itself. Like an example. NGRP gold VIP is exploitable and you can get unlimited amount of them but you have to at least have one. Using the dialog hider, and some steps. If you could perhaps tell us about which server as an example. We'll try helping.