Okay - so I'm going to be the odd one out here.........
We went to a State Park in PA 2 weeks ago for 5 days, the park was full during the week-end and for the most part - when the crowds left on Sunday, the park was quite clean (including the bath rooms).
Today we just got back from a really busy park and during our "farewell" tour of the area, we found just 1 plastic bottle littering the place - I even commented to my wife how CLEAN people are.
Just another data point - am I swimming against the tide on this one?
Gerry