Put out fliers at local churches, community colleges, and grocery stores. Any place that offers a free community bulletin board is a good asset too. Community colleges=gatherings, graduations, etc etc etc. . .Churches=Weddings, social gatherings, Red Hat Lady luncheons, all sorts of potential clients.
Your best advertisement, will be word of mouth. unless you have the overhead to get heavy into advertising, you may have to wait to build your reputation.
Hell, go to one of the fast sign type places and get a giant magnet thingy made, I see them all over D.C., keep it on your vehicles all the time.