I have done this. Not as much as I used to do. Went up to Lookout Mtn last year and picked up a bunch while hiking up the road near the top. It was impromptu. I just used some bags I found along the way. Yay to this lady for cleaning up. Littering is a huge pet peeve of mine. I grew up with this guy:
But he’d kill himself if he saw this:
Thanks for posting a link to the video on river pollution. Yikes!