The interpretive signs at Beechwood are a popular target for tags, and I spend a little time each summer scrubbing them off. Before:

The official cream cleanser of Beechwood wetland:

After:

Not perfect, because the painted surface is pitted and hard to clean. I would have been better off just painting over the tags, but this will do.

Spot the raccoon hiding in this picture:

Of course, while I'm scrubbing signs and tracking coons, the tansy is swarming over the landscape in every direction: