cool... i leave them under windshield wipers, i'm just really careful when i do it. i dont learn up on the paint or anything... just very daintily pull back the wiper a little and put it underneath. hopefully not too many people are bothered by that. or of course if you're talking to someone you can just hand them one so they'll remember the name...
they also have a space allotted on the back side to write notes to car girls, if the situation should present itself. tst... always tryin to get you laid