Recently, I've gotten tired of coming home from work to find random flyers attached to my front door. Aside from the hassle of having to toss the papers in the recycle bin, the flyers are an obvious hint to thieves that there's probably nobody home. I stuck a "No Solicitors" sign on the front door a couple months ago and have had good luck so far. Our security cameras have captured a number of these spammers walking up the driveway, but once they get close to the porch and see the sign, they turn right around leaving nothing. No flyers and no door-to-door solicitors makes the WAF high and makes this a high bang for the buck "project."