Eh I don't really make money anymore lol. Last time I needed some I bought it.
I used to Arma/Bandos/Corp for my cash. I also got 99 WC from yews/99 Fish from Monks/99 RC from Nats (back when Nats were like 300-350 each)/99 Mining from Gold, those helped my bank (especially RC)
I train accounts and sell them, does that count? I suppose it would if im selling them for RSGP. Otherwise I don't really do anything else for making gold.
I used to make money via PvM, doing Godwars bosses, slayer, clue scrolls stuff like, slower than say frost dragons sometimes but i found it more entertaining overall.