I know this is an old thread, but something just crossed my mind that I think is relevant to contribute.

I think it's a good idea to stipulate a limit as to the number of revisions that are included in your price.

I learned back when I was doing web design that people initially don't know what they want but once they see an initial concept of what you have interpreted from their description etc, that they suddenly get all kinds of ideas of what they want, some realistic and others not. Some easier and others more time consuming.

If you don't stipulate the number of "free" revisions that are included in your price, you will be revising and working on that project for a very long time.  If people know that the more changes they want will cost them more money, they will be more inclined to put some thought behind their project.

 

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi