I've gotten paid much more than this (though not for sustained periods of time). I had established clients. I knew their business. I get a call one day askin

I've gotten paid much more than this (though not for sustained periods of time). I had established clients. I knew their business. I get a call one day asking to fix something trivial. "Ok. But I have to charge you for an hour. I am happy to tell you how to fix it over the phone right now for free. It will just take a few minutes." (I think I was working on something else and didn't want to be bothered). "No, no. Just fix it. It's fine." /shrug/ 3 minutes later I have a billable hour (which was $150 at the time) ready for invoicing. That comes to an effective rate of $3000/hr.