The solution lies not in tackling the dropping of litter - it lies in how we go about picking it up. Given that there will always be litter simply because a gust of wind might blow litter out of a bin, a fox might rip open a black bin liner and, of course some people will never consider the dropping of trash on the public highway to be wrong, my suggestion is that next time you walk down the road and see a piece of litter, as a good member of the community, pick it up and put it in a bin.