I actually do this as a full time thing; I started a consultancy to fix horrifying AWS bills. Something I've learned is that flat fee pricing makes the most se

I actually do this as a full time thing; I started a consultancy to fix horrifying AWS bills. Something I've learned is that flat fee pricing makes the most sense-- while tempting, the other models are off-putting. Hourly is a great way to starve to death, and "percentage of savings" grows difficult to quantify. "Okay, you just recommended the following reserved instance purchases. Is this really the best for us, or does it boost the number you're taking a percentage of?" It's very easy to end up misaligned with your clients as you go down that path...