I'm trying to get my wedding planner to come down on her (exorbitant) price. What are some ways to bring her down without making her want to screw up my wedding?

Just tell her, look, this is all the money I have - I want you to organize my wedding for me. But it's all the money I have. If you can't help me, I'll have to go somewhere else.

In fact, the wedding planners is waiting for you to make this announcement. It happens in every wedding she has ever been involved in.