How to make money from writing... sell writing courses telling people how to make money.

I paid for a "How to Make Money as a Writer" way back before the Internet. I learned a lot from that and it actually planted a seed that made me want to be a writer, though I did put it on the backburner for many years and just concentrated on my boring nine to five job.

I haven't spent a cent on another course since and am glad I haven't. You can't teach an old dog new tricks. You make very good points about all writing platforms continually changes, so any advice gets outdated.