Why don't you just ask for a raise? The worst that would happen is that you keep your current salary. Go to your boss and demonstrate to him how important you

Why don't you just ask for a raise? The worst that would happen is that you keep your current salary. Go to your boss and demonstrate to him how important you are since you have knowledge of a number of things that no one else can do. Tell him the truth--that you're considering leaving the company but would stay if you got a raise. You'd be surprised by what you can get if you simply just ask for it.