I have about 30 residential accounts now but do not have any commercial accounts. Most of my advertising is done in local papers and the yellow pages but I still dont seem to get any calls from commercial properties. I want to be more aggresive but dont know where to start. I thought of selecting a few properties and mailing them a letter offering my services and enclosing a business card. Still I feel there is a better way. How do you guys land commercial properties ? Thanks for your ideas.