[hobofan]

If you follow the authors other advice of not charging to little (which is strongly connected to how much your client values you), that's rarely a problem in my experience. My client knows my hourly rate, so when I tell them that the extra features take 3 additional hours they know exactly how much that would cost them. No haggling, no negotiations, no meeting.

Of course that only works with time-based billing, and a lot of people would advise against it, but it's one of the reasons why I love it.

[fareesh]

This is definitely the case with "good"/recurring clients, and it's very painless. Not so much with others.

[codingdave]

Then you don't want those others. I know it is hard to turn down work when you are getting a consulting business going, but there are "good" clients, and "bad" clients. You are not doing your future self any favors by rewarding bad clients with free work.