In reply to Furthur:
I picked up a Lucozade bottle and a cigarette wrapper from the pavement in front of our house. It's a regular thing for me, although I do get some weird looks. I have had people comment to their friends about "that man picking rubbish up off the street!"
I always pick up some rubbish on the hill, I wait until the last 5 or so miles of a walk and pick up as much as I can carry.
Good idea for a thread, if we all do a bit it has to make a change.
This forum I think is the wrong place to target the culprits though!