Don't ask, don't get. And asking is the only thing you can do. Almost never will your boss/manager approach you and offer you a significant raise, even if you're a kickass developer who is crucial to the company. Just ask.
Still, asking will only get you that far. I got $80->$90/hr raise by asking. But then I got a 40% increase by changing jobs.
And if you're consulting, and are confident enough, you can just raise your prices by a lot. I once was very busy, and told the client that I would freeze my other project if they pay $150/hr, and they agreed to it. Win-win. I get more money, they get the product.
Still, asking will only get you that far. I got $80->$90/hr raise by asking. But then I got a 40% increase by changing jobs.
And if you're consulting, and are confident enough, you can just raise your prices by a lot. I once was very busy, and told the client that I would freeze my other project if they pay $150/hr, and they agreed to it. Win-win. I get more money, they get the product.