I haven't really done a lot of knocking on doors. I have considered doing it in different ways but nothing etched in stone yet. I have heard many people like the two gentlemen before me stating that was how they started out.
I started differently thes past 3 months for myself. I started with some fliers my business partner put one doors (probably 200-300 of them, maybe more). This didn't do much. Maybe landed a call or two at the most. Then someone turned me on to craigslist and I started posting there. Everyone with the exception of two people that have contacted me have come from craigslist. One people came from a local persons webpage call www.jobsitejoe.com
and this webpage was a great idea for this area. Its hasn't completely taken off but the idea was great! Then 2 recently from www.boxforyou.com
which is another free advertising webpage. I figure anything that is free and similar for posting cannot hurt so I throw an ad in it.
For the spring I am considering putting an ad at a local restaurant that costs $150 a year to advertise, maybe try fliers again but I am also considering creating a survey to find out what people in different areas want and marketing based on that.