Allyson Stanfield, artist-author-speaker, offers many great suggestions on her blog for those involved in art and craft work.  Many artists and artisans don’t immediately think like business people, so have to get into this mode.
One of Allyson’s latest suggestions is found in the blog post, Don’t Leave Your Art Work Without a Piece of Paper.  Make sure when you do leave art work for display or on consignment, that you have a written agreement, signed by both parties.  Allyson has a good list of suggestions.
Do you have any tips to add?