>I suggest to compose a small, standard, note, similar to this:
>"Please understand that, while I am willing to help other people with programming problems, I only do this on public places like the UT, so that others can benefit as well. The only exception is paying clients."

I receive lots of private emails with questions weekly, and I also answer like you said... but there's some people who *really* do not understand that... it's incredible... :(