Maybe put up a sign that says:
Do NOT leave any materials of any type affixed in any way on this property. Violators will be reported and action taken in a civil suit for property damage.
Do you think that sounds official and threatening enough????? I'd like to put one up too, but I'm not sure if it'd actually work. But isn't our own property our own??? The ridiculous ads on my house and on my windshield are definitely the cause for much of the litter around here when the wind picks up every single afternoon!!!!
Okay, am I a bit obvious that this is one of my pet peeves??
