Trying to sell your music is not easy. I have set up my site now, it's here. At the moment I am only selling the music in PDF files. I think this is easier and cheaper:
1) There is no paper, the purchaser only has to print the music his/herself. That's convenient.
2) It's cheaper, because there is no postage for sending bulky packages.
Of course, the purchaser can order the pieces in copied and bound form, if he/she wishes.
I hope to expand the site to include other composers as well, however, at the moment, it's enough just to sell my own music.