It's a modern scourge and disgrace. And it's reaching epidemic proportions. There is growing anger over the amount of litter blighting roads in the South and the Thames Valley.
As the 'Clean for the Queen' litter picking drive gets underway for her 90th birthday year, blame is falling on the motorists who chuck rubbish out of their car windows and the authorities who don't clear it up regularly enough.
We've found rubbish strewn on roads across the Thames Valley and into Hampshire and Surrey, from where Emma Wilkinson reports.
Rich McIlwain from the campaign group Keep Britain Tidy told Fred about what he thinks needs to be done to improve the situation: