...and usually a very fat fee and commission; in addition, you usually will
pay for your own announcements and refreshments for the opening.
Other ideas:
If you have been a responsible member of your community you have probably
come to know the head librarian, local museum directors, etc. Write a
proposal for your exhibit letting the institution know how it will be of
benefit to them as well as the community at large to have your exhibit. Maybe
offer a workshop (institution earns some of the fee money) or even a brief
free demonstration around opening day. Write a brief bio and promo piece for
the local newspaper and ask the librarian or museum director for input--they
are usually very helpful with good advice.  I personally have found local art
groups to be somewhat competitive and territorial and museums, zoos,
libraries, colleges, etc. very receptive and free with advice.
Don't show in restaurants. Grease is unkind to pictures and there is lots of
it in restaurants.
 JHLee