Market Your Self

I have been asked recently on how to market a new company.  A friend of mine is thinking of starting their own errand service but isn't sure how to promote the company to attract clients.  So here is few simple basic ideas to answer those questions.
1.) Your Friends and Family are a great score of free advertising.
2.) Sticky magnets that you can attack business cards to, and put on mailboxes in neighbors you want to promote your business in.
3.) Car signs, these magnets can be put on either side of your car and as you go about driving around town to are advertising your business.
4.) Other small companies, if you are an errand service ask to leave fliers inn dry cleaners, flower shops, etc and then in return promote those places of business to your clients.