I put up no trespassing signs on all corners of the property. This morning I sat on the porch and watched three separate groups of door to door folks stop at the driveway point at the signs and walk on by. They appeared to be selling something. Glad to see people are respecting the notice. ...so far so good. So far no one has come up to the porch where I hung a sign that reads,

"DO NOT KNOCK. No Uninvited or Unexpected Callers. This is Private Property. We will not buy anything at the door, nor change utility companies, donate to charity, listen to religious or political views, participate in surveys and we don't want to sell our house. DO NOT DISTURB"

I plan on ignoring any Unexpected callers. The Property is well identified as No Trespassing. I will call police on all who ignore the legal notices.