Personally, I've found that when good developers deal with clients, they often get sucked into the after-sales support process and this process has been difficult to reverse, so was just interested to hear the various strategies that developers employ in maintaining a healthy, useful relationship that keeps clients using the right person at the right time.
So do you and, if so, how do you deal with clients?
I just finished my education and am working at my first job, but here is what we do:
I communicate through a third party from the same company with "higher rank". The third party is someone knowledgeable of the requirements the software should have, but not in software engineering. When I ask about specifications, or send them proposals he distills the essence of their answers send them to me.
I think this way of working with stuff limits the amount of bullying a customer can get away with when it comes to changing specs, expanding specs etc.
For me it's especially useful since I'm only 21 years old, and people might have trouble believing I can get things done.