Using sites like Yelp and Foursquare will help Local SEO in a fast and noticeable amount. In some cites completing this list will put you at the top of Google. Abusing fake reviews is a bad idea. If you are just looking to do SEO in general all these High Page Ranking Backlinks will give you a great quick SEO boost for the keyword you use as your business title. Remember it is all free if you don't do it your competitor will.