The simplest solution

John and I both work from home and are constantly battling door-to-door solicitations, ranging from the Schwann's guy wanting us to order frozen dinners to scruffy-looking guys just outright asking for money. Not only is it an interruption to whatever we're each working on, it's a hassle to constantly be haggled for money. (Especially here in Gainesville, where you can't step foot out the door without being panhandled.) So I hung a piece of paper on the door that said No Solicitations and it worked! Sunday morning (Sunday morning!) a guy came to our house, read the sign, and turned away. It was sheer bliss.