On our dog walk this evening, we found that two neighborhoods to the south of us have been targeted by a new sort of marketing technique--in each yard was a bag containing a few rocks and a business card, apparently dropped by someone driving by who was too lazy to deliver them to the front door. In one neighborhood, these were like the ones pictured, in a ziploc bag with a card advertising a landscaping service. In another neighborhood, they were in twist-tied baggies with a piece of paper advertising a cleaning service.
This doesn't seem to me like a very effective method of advertising. The door hanger flyers are annoying already, but these are worse--it's like tossing trash into people's yards.